Well it depends on what you mean by change.
Just two, but they'd have to be really small.
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Two. One to hold the ladder and one to screw your mother - I mean light bulb!
Only one... but it will take a few episodes. The lightbulb saga
About 2 bucks an hour depending on what the current minimum wage is.
Depends...
The Prostate exam isn't going he way you expected
I mean, it is only hanging by threads...
The Philosophers Stoned
It depends on the definition of lightbulb.