Well, first off, it's called a lamp...
A lot, apparently. Have you seen their new building?
Just one. They hold it in place while the world revolves around them.
A: Uh...standby I'll check on that.
Two! one to change the light bulb and the other to rotate the universe!
ME:Well if you'd just sod off like I asked, I wouldn't have to throw lamps at you.
Because business was very light.
Just one, but doing it will make them think they're going to be an electrician in the future.