Two. One to screw it in and one to take credit for it.
Two. One to screw in the bulb and another to talk about how complicated it was.
None, because little boys don't fit in a lightbulb.
You're still thinking procedurally! A properly designed light bulb object would inherit a change method from a generic light bulb class!"
More guns.
Depends on which method you try....
One because his knee grows.
Zero. Somebody already did it.
Fedora the explorer.
A maize runner. Credit goes to my girlfriend.