Two. The light bulb you remove and the light bulb you replace it with.
He's got more money than cents
Twelve. Three to Physically Change the Bulb, Three to Talk About How Complicated it Was and Six to Call themselves Electricians.
They grab the stack of un-signed adoption papers, stand on top of them, then proceed to change the light bulb.
Light bulbs
Remove an electron.
Removed
It was da-press-in.
None. Once the bulb goes out, they replace the house.