well many how???
That's not funny.
None, they like to keep the mods in the dark.
A: Just one but he wants to do it thirty-two times and when he's done everyone thinks that his last lightbulb was much better.
Three. One to pay a Mexican to do it, two to deport him afterwards.
A person that lays awake late at night and ponders if there's such a thing as a dog.
A person who stays up all night wondering if there is a dog.