Four. One to change the bulb and three to make a t-shirt about it.
Twelve. Three to Physically Change the Bulb, Three to Talk About How Complicated it Was and Six to Call themselves Electricians.
Two. One to screw in the bulb and another to talk about how complicated it was.
Change their name to past tense, WASWAS.
You don't. The police shoot you.
OVER 9000
Tires need changing too you know!
A Casual Tee.
A dog has a better understanding of no.