(Jed tells Jethro the bone he is talking about is for Duke, not to Jethro's preference)
Jed: Well, take Duke around back, and you can share the bone with him
Jethro: You don't expect me to gnaw on the same bone with this old hound dog, do ya? That's what cha call unsanitary!
Elly: He's right Pa. Duke might catch somethin'.