Little Johnny
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 think they'll be out soon?"

Johnny: "Doubt it. When my dad asked me for the Vaseline, I gave him super glue instead."