What do a blonde and a…

What do a blonde and a door knob have in common? Everybody gets a turn.
Jokes, +1:
A blonde man marries his girlfriend who is also blonde. It's their first honeymoon night and the man doesn't quite know what to do. He calls his dad, who says, "Son, you take the hardest thing you got and you put it where she goes to the bathroom." The newlywed thanks his father, hangs up the phone, and places his bowling ball in the toilet.