A Freudian Sleep.
They'll stare at your shoes instead of theirs.
There used to be exactly two, and now it's too offensive to talk about.
Husband: Only you, Honey. With everyone else, I was awake.
No problem , He sleeps at night.
Two. One to hold the ladder and one to screw your mother - I mean light bulb!
One to unscrew it, and one to hold the ladder.