Depends what you want it to change into...
It was a boxer!
ME: I want you checking thesaurus in a panic haphazardly
Just two, as long as they can find a way in.
I don't care. You pick
have you tried turning the light off and back on?"
Just one but he wants to do it thirty-two times and when he's done everyone says that his last light bulb was much better.
It Depends
Depends.
Because they were neckromancers
Because he was a neck-romancer....