1
The bear minimum
Two. One to hold the ladder and one to screw your mother - I mean light bulb!
None, no light bulb dare go out in the presence of Chuck Norris.
Just one but he wants to do it thirty-two times and when he's done everyone says that his last light bulb was much better.
100, 1 to screw it in and 99 to say how they could do it better.
He counted 1 Mississippi, 2 Mississippi, 3 Mississippi, 4 Mississippi...
