A guy walks into the bedroom with a lamb on a leash and says "Honey, this is the cow I make love to when you have a headache."
The wife, lying in the bed reading a book, looks up and says, "If you weren't such an idiot you'd know that's a lamb, not a cow."
The guy replies "If you weren't such a presumptuous bitch, you'd realize I was talking to the lamb."
