Three. One to hold the light bulb and two to spin the ladder.
One, but the light bulb has to want to change.
To get to the other side
100: One to do it and ninety-nine to say "I could've done that."
Three. 1 to screw it in and 2 to talk about how much better Neil Peart could've done it
Artificial intelligence!
Because she kept throwing out all the W's
