"Ten billion dollars and high cholesterol!"
or
Because her mom would make her take it back.
or
It takes two. One to change the bulb, and the other to kick the switch.
or
Three:
One to write the light bulb removal program,
one to write the light bulb insertion program, and
one to act as a light bulb administrator to make sure nobody else tries to change the light bulb at the same time.
or
The batter.
or