0, the light bulb has to want to change itself.
He didn't want to get carpool tunnel syndrome.
He wanted rich milk.
Er two. Or maybe one. No --- on second thoughts make that two. Is that okay with you
One.
Three. One to change it while the other two argue about how old the old one is.
Zero. Homeless people don't screw in light bulbs they screw in cardboard boxes.
I can clearly see ur nuts.
Because they are both surrounded by nuts.