How many midgets does it take to change a lightbulb?
One with a step-ladder. They're short, not stupid.
EDIT: All the crap in the comments about my use of the word "midget" reminded me of Bill Burr's stance on the issue. If you've got a sense of humor, have a listen [here!](http://www.youtube.com/watch?v=0pN7t4DDI4k#t=32)