Executive Summary: Key Legal and Evidentiary Issues

• Disputed existence and terms of any verbal agreement governing profit sharing and musical services for the Oktoberfest-style community event
• Characterization question of whether the parties formed a verbal “contract of society” (société/partnership) under article 2186 C.c.Q.
• Resort to unjust enrichment (art. 1493 C.c.Q.) as an autonomous legal basis in the absence of a proven contract
• Evidentiary controversy over how many tickets Jan Chlumsky actually sold, including the reliability of documents P-5 and D-1 and witness credibility
• Determination of the scope of Vladimir Dvorak’s “appauvrissement” and Chlumsky’s “enrichissement,” and the proper quantum of restitution
• Rejection of the defendant’s counterclaim both on evidentiary grounds and because of internally inconsistent and disproportionate procedural positions

Background and facts

The dispute arises from an Oktoberfest-themed evening event held on 14 October 2023 within the Czech and Slovak communities in Montreal. Both Vladimir Dvorak and Jan Chlumsky attended with their spouses, and Chlumsky provided musical entertainment. The event involved the sale of tickets at 45 dollars each for admission and a meal, including a main dish of two sausages per person. No written agreement was ever signed.
Dvorak paid for the hall rental and most of the organizing expenses, while Chlumsky contributed by promoting the event, printing multilingual advertising materials, selling tickets through his network and purchasing a quantity of sausages for the meal. After the event, a dispute arose about who was entitled to the proceeds from ticket sales and how any profits should be distributed.
Dvorak commenced proceedings in the Small Claims Division of the Court of Québec. He claimed 2,610 dollars from Chlumsky, alleging that Chlumsky had kept the revenues from the sale of 58 tickets at 45 dollars each, even though under their agreement Chlumsky was required to remit these sums to Dvorak and provide his musical services free of charge. Dvorak maintained that he alone was entitled to the profits from the evening.
Chlumsky contested this version. He argued that the parties had agreed to share equally the net profits of the evening, after each party’s expenses were deducted, and that his musical performance was to be free only if the event turned out to be a failure. According to him, because the evening was a success, he was entitled to half the profits and had no obligation to play for free. He also insisted that he had sold only 35 tickets, not 58, and that he had already tendered Dvorak’s share by issuing a bank draft for 1,272.50 dollars, which Dvorak refused to cash.
In addition, Chlumsky filed a counterclaim. He alleged that a total of 94 tickets had been sold for the event, and that by keeping the proceeds of 59 additional tickets, Dvorak had wrongfully appropriated revenues that should belong to him. On that basis, Chlumsky claimed 2,654.50 dollars, effectively asking the court to award him all proceeds from the evening. Over time, the amount of his counterclaim was increased from an initial 600 dollars to this higher figure without adding new factual allegations.

Competing versions of the agreement

The court first focused on whether there was any binding agreement between the parties and, if so, what its terms were.
Dvorak’s version was that he proposed organizing the evening in mid-August 2023 and that Chlumsky replied he did not want to “put money into it.” Dvorak then allegedly agreed to assume all the expenses connected with the event in exchange for Chlumsky’s agreement to provide music free of charge, allowing Dvorak to keep all the profits.
Chlumsky firmly denied this. He contended that the arrangement was different: Dvorak would pay for the hall, but the parties contemplated two scenarios. If the evening was not a success, Chlumsky would absorb the loss of his time and provide music free to match Dvorak’s expense on the hall, which he perceived as roughly equivalent. If the evening was a success, however, they would share the profits equally, after deducting each party’s respective costs for the hall, staff and food.
The judge found neither party’s contractual theory fully persuasive. On Dvorak’s side, the court saw a mismatch between his assertion that Chlumsky had agreed to work solely for free and the reality of Chlumsky’s extensive efforts: he printed advertising in three languages, actively promoted the event and sold a substantial number of tickets, and contributed food supplies in the form of sausages. Those actions were inconsistent with the idea that Chlumsky had resigned himself to receive no share whatsoever of the financial outcome.
On the other hand, the court also rejected Chlumsky’s attempt to characterize the relationship as a verbal “contract of society” (partnership) under article 2186 of the Civil Code of Québec. A contract of society requires, among other elements, a shared intention to form a society (affectio societatis). The hall was rented only in Dvorak’s name, Dvorak assumed most of the expenses, and Chlumsky’s own pleadings were structurally incompatible with a true partnership theory because he claimed entitlement to all of the revenues rather than a share.
The court emphasized that filing pleadings is a solemn act: a party cannot plausibly invoke a partnership that implies shared profits while simultaneously seeking to appropriate the event’s entire revenue stream. This inconsistency undermined the credibility of the alleged contract of society.

Court’s analysis of the legal framework

Having rejected both parties’ contractual theories, the court concluded that no juridical act governed the sharing of revenues from the evening. That conclusion did not end the case. Instead, the judge turned to extra-contractual sources of obligations under Quebec civil law.
The court held that the relationship fell within the doctrine of unjust enrichment codified at article 1493 C.c.Q., which embodies the equitable principle that no one should be unjustly enriched at another’s expense. The judge set out the six conditions for an action in unjust enrichment: (1) enrichment of one party; (2) impoverishment of another; (3) a correlation between the two; (4) absence of legal justification; (5) no fraud on the law; and (6) the absence of any other available remedy.
Applying these conditions, the court found that Dvorak had suffered an “appauvrissement” by assuming significant expenses for the hall and other third-party costs and by being deprived of an increase in his patrimony that would have occurred had he received a fair share of the revenues. Chlumsky, for his part, had been “enrichi” because he retained revenues from ticket sales while not bearing most of the expenses that made the event possible, including the rental of the hall and organization.
The necessary correlation between enrichment and impoverishment was present: without Dvorak’s organization and expense payments, Chlumsky could not have held the event, sold the tickets or generated the income he retained. There was no valid contractual or other legal justification for Chlumsky to keep all of these revenues, and no allegation of fraud to the law. Finally, given the court’s finding that no contract or contract of society existed, Dvorak had no other cause of action, satisfying the residual condition for resorting to unjust enrichment.
Consequently, the court decided that Dvorak was entitled to be indemnified by way of restitution, with the amount calculated as the lesser of Dvorak’s impoverishment and Chlumsky’s enrichment.

Assessment of the evidence and ticket sales

To determine the quantum of the indemnity, the judge had to resolve the factual controversy over how many tickets Chlumsky actually sold and how many guests attended the event.
Dvorak maintained that Chlumsky sold 58 tickets. He relied on document P-5, a calculation sheet prepared by Chlumsky and handed to the volunteer at the door, Ludmila Jangl, who collected payment from those arriving at the venue. Chlumsky admitted giving her such a document but insisted that P-5 had been altered and that it was merely a rough working paper, not a reliable accounting of actual sales.
Jangl testified unequivocally that the version of P-5 in evidence was the same document she received from Chlumsky. The court considered her testimony clear, disinterested and credible. In contrast, the judge found Chlumsky’s memory about P-5 to be uncertain and his explanations hesitant, noting his inability to point to specific double entries or errors that would reduce the ticket count to the 35 he claimed.
Further weakening Chlumsky’s position was his own document D-1, which he had placed in evidence. In that document, he recorded a total of 2,130 dollars collected. At 45 dollars per ticket, this figure corresponds to more than 47 tickets sold, contradicting his oral assertion of only 35 sales.
However, the judge was not prepared to accept the full 58-ticket figure advanced by Dvorak. That number would imply 75 people in the room (58 tickets allegedly sold by Chlumsky, 13 tickets sold at the door by Jangl on Dvorak’s account and four unpaid attendees representing the two couples themselves). The available testimony about the number of attendees was inconsistent, and Dvorak presented no decisive proof that 75 meals were actually served. The question of how many sausages were purchased and served also cast doubt on higher attendance estimates, particularly given the consistent evidence that each guest received two sausages.
Balancing these elements, the court ultimately fixed the number of tickets sold by Chlumsky at 47 and the total attendance at roughly 64 people. This intermediate finding meant that Dvorak could not receive the full amount he claimed on the basis of 58 tickets but was still entitled to a substantial indemnity for Chlumsky’s unjust retention of proceeds.

Disposition and financial consequences

Having found unjust enrichment and determined a more realistic picture of ticket sales and attendance, the court assessed Dvorak’s impoverishment. The evidence showed he had incurred expenses of 1,065.64 dollars to third parties in connection with the event, an amount that Chlumsky himself had acknowledged in his own calculations. The court also recognized that Dvorak had been deprived of an increase in patrimony corresponding to a reasonable share of the revenue generated through his organization and financial outlay.
At the same time, the judge was cautious not to convert Dvorak’s unjust enrichment claim into an “over-correction” that would, in turn, unjustly advantage him. Granting Dvorak all of the revenue generated by the tickets sold by Chlumsky would have allowed Dvorak to appropriate the fruits of Chlumsky’s own efforts in promoting and selling tickets and providing food, creating a mirror-image unjust enrichment. The court noted that an appropriate award must reflect both men’s real, if conflicted, contributions to the success of the evening.
On that basis, the court determined that a rounded sum of 1,300 dollars fairly represented the extent of Dvorak’s impoverishment in light of the proven expenses and the lost gain he reasonably should have enjoyed, while still leaving scope for the benefit of Chlumsky’s own work. The judge also took into account that, shortly after the event, Chlumsky had himself issued a bank draft to Dvorak for 1,272.50 dollars as the share he then considered appropriate, only later instructing Dvorak not to cash it after receiving a demand letter. The court regarded this reversal as a post-hoc attempt to avoid payment, not as evidence that Dvorak was owed nothing.
Accordingly, the court partly allowed Dvorak’s claim, ordering Chlumsky to pay him 1,300 dollars, with legal interest and the additional indemnity under article 1619 C.c.Q. running from 28 November 2023, the date of Chlumsky’s written response telling Dvorak not to cash the draft. The court also fully dismissed Chlumsky’s counterclaim for 2,654.50 dollars, finding it internally inconsistent with his alleged partnership theory, poorly supported by evidence and procedurally disproportionate, especially given his shifting claims about the number of attendees and the evolution of the counterclaim amount.
Finally, the judge awarded Dvorak 115 dollars in court costs, covering both the main claim and the counterclaim. In financial terms, Dvorak is thus the successful party, with a fixed award of 1,300 dollars in principal and 115 dollars in costs, for a total of 1,415 dollars, plus legal interest and the article 1619 additional indemnity from 28 November 2023 onward, the exact value of which cannot be determined from the judgment alone because it depends on the eventual date of payment.