Conversation between a small boy and his two uncles:-
Boy: Uncle John, is Uncle Peter your wife?
John: No, he's my husband.
Boy: My mum says you need a woman to have a baby, so how can you have one?
John: We're going to buy one from a big baby shop.
Boy: Can I come too?
John: If you like.
Boy: What are you going to call it?
John: Well, I want Patch and he wants Rover.