If one slaughters an animal with intent to use the blood for idolatrous purposes, is the rest of the animal forbidden for any benefit or not? Yes, it’s a machloket. With hypothetical parallels to pigul. Unless you think nothing in the Temple can be used to infer halakhic details for that which does not pertain to the Temple service. Also, a husband who writes a bill of divorce that was written when he is healthy as a safeguard against the future, and then he dies — but if he had no knowledge of that risk to his life, then his intent in writing the divorce is absent and the divorce is not a divorce. Conversely, one who inherits a contract of slaves cannot free them by protesting the ownership.