Old Farmer Peter was dying.
The family was standing around his bed. With a low voice he said to his wife: “When I’m dead I want you to marry farmer Jones. “
Wife: “No, I can’t marry anyone after you. “
Peter: “But I want you to. “
Wife: “But why?”
Peter: “Jones once cheated me in a horse deal!”
This joke is included in the Black Book of Jokes. You can order it from here.