Is there any common law case law that states that a person who receives compensation for their services is subject to an onerous obligation to perform their services at all costs of service?

British Columbia, Canada

The following excerpt is from Fraser Gate Apartments Ltd. v. Western Surety Co., 1998 CanLII 6532 (BC CA):

44. The concept that those who receive compensation for their services may have more onerous obligations than those who offer them gratuitously is not unknown at common law. See Coggs v. Bernard (1702), 2 Ld. Raym. 909, 92 E.R. 107.

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