Light Bulb - Mutant

Q: How many mutants does it take to screw in a light bulb?
A: Two thirds.

Light Bulb - Waiter

Q: How many waiters does it take to change a light bulb?
A: None, even a burned out bulb can't catch a waiter's eye.

Light Bulb - 7 Beueaucrats

Q: How many bureaucrats does it take to screw in a light bulb?
A: Seven--one to supervise, one to arrange for the electricity to be shut off, one to make sure that safety and quality standards are maintained, one to monitor compliance with local, state, and federal regulations, one to manage personnel relations, one to fill out the paperwork and one to screw the light bulb into the water faucet.