I know it is a little obvious, but I couldn't write a post about gambling without using lyrics from "The Gambler." Fortunately, the case this post discusses -- Sun Life Assurance Co. of Canada v. U.S. Bank National Association -- is anything but obvious. Sun Life involved gambling on another person's life but not in a Deer Hunter, Russian roulette kind of way. In Sun Life, the U.S. Court of Appeals for the Seventh Circuit addressed the enforceability of an insurance policy that insured a stranger's life.
In Sun Life, Judge Posner began his decision by discussing the common law principle that "forbids a person to own an insurance policy that insures someone else's life unless the policy owner has an insurable interest in that life." A wife can have an insurable interest in her husband's or children's lives, a creditor can have an insurable interest in a debtor's life, but "you cannot own an insurance policy on the life of a stranger who you happen to know is in poor health and likely to die soon." The reason is that, by doing so, you are essentially gambling on another person's life, and gambling contracts are generally unenforceable as a matter of public policy.