Abominable! [A Bomb In a Bull]
or
It takes two to tangle!
or
On honor rolls.
or
Use a sea saw.
or
The barman says "Sorry we don't serve food in here"
or
Six. One to turn the bulb, one for support, and four to relate to the experience.
or
Does it have to be a light bulb? I've got this neat candle holder...
or