the cows heard

NURSE PIGGY: Where did we get this patient from?
DR. BOB: Oh. Well, she was found with a bunch of cows.
NURSE PIGGY: Not bunch. Herd.
DR. BOB: Herd of what?
NURSE PIGGY: Herd of cows.
DR. BOB: Sure, I've heard of cows.
NURSE PIGGY: No, no, no. I mean the cows herd.
DR. BOB: I don't care if the cows heard. I haven't said anything to be
ashamed of.