None. They can't get up that high!
One. He holds it up and the world revolves around him.
He was changing the lightbulb before it was cool. rimshot
Two. One to assure that everything possible is being done about the situation and the other one to screw it into the faucet.
None. Social scientists do not change light bulbs they search for the root cause as to why the last one went out.
Because it was More ER Tea.
The second coming of Jess.