Apparently not 8
One. We are efficient and don't have any humor.
Three. One to hold the light bulb and two to spin the ladder."
None. They just grab it and the world to revolve around them.
Does it have to be a light bulb? I've got this neat candle holder...
Because 7 8 9
The Newport (My first joke, sorry if bad 8)
I don't have Ferrari in my garage.
You take your boots off to jump on a trampoline.