A: We ain't sayin' nuthin'.
Two. One to do it, a second to keep yelling, "You're lookin' BIG, man!"
3. One to screw it in, the next to claim credit and the third to be a bot that reposts.
2 but how they got in the light bulb I will never know
It only takes two mice to screw in a light bulb. The hard part is getting them in there.