A man and his wife are in bed, the man is really horny and wants to have sex, but the woman just wants to read her book, so she refuses.

the man, frustrated, jumps out of bed and goes down to the basement, and when he returns to bed, he's holding a sheep. The man says "this is the pig i cheat on you with when you're busy" . the women looks at him and says "honey, that's a sheep in your hands". The man turns to her and says " I wasn't talking to you".