Amen.
Twenty. 1 to drop it, 19 to go "Pick it up, pick it up, pick it up".
Two. One to hold the bulb and other to drink until the room spins.
It doesn't matter how many you get, because all they'll do is sit around complaining about how misogynistic the use of the word "screw" is.
There are no nails, and no screws, it's all tongue and groove!