Tim And Sam
Sam: Yes, for the fourth time.
Tim: What happened to your first three wives?
Sam: They all died.
Tim: How did that happen?
Sam: My first wife ate poison mushrooms.
Tim: How terrible! And your second?
Sam: She ate poison mushrooms.
Tim: And your third ate poison mushrooms too?
Sam: Oh, no. She died of a broken neck.
Tim: I see; an accident.
Sam: Not exactly. She wouldn't eat the mushrooms.