A salesman rings the door bell and Little Johnny answers.
Salesman: “Can I see your dad?”
Johnny: “No, he’s in the shower.”
Salesman: “What about your mother? Can I see her?”
Johnny: “Nope. She’s in the shower too.”
Salesman: “Do you have any brothers or sisters?”
Johnny: “Yeah, a little brother and a baby sister, but they’re both in the shower too.”
Salesman (getting frustrated): “My God! Do you mean to tell me that everyone in your house is in the shower right now?”
Johnny: “No… it’s just that when the doorbell rings, we all hide in the shower!”
