A: Three. One to screw it in one to watch and one to shoot the witness.
Hella.
Seven. One to change it, two to take pictures, and four to make t-shirts for the event.
Hella
NONE! ITS A SECRET GOVERNMENT PLOT TO KEEP US IN THE DARK!"
One. He just stands there with the lightbulb and the whole world revolves around him.
None, because they can't change anything.
Two. One guy to screw in the light bulb, and the other guy to shoot him if he doesn't do it right.
A school shooting
Because now his watch has ended.
with binoculars. u know, he has to watch whatever the neighbours are watching.
The Iguanodon
The all up in yo business.
WITNESS ME!"
Because they don't like random people knocking on their doors