First he lies on one side, then he lies on the other.
or
or
The lettuce came in ahead, the egg got beat and the faucet is still running.
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
"Ten billion dollars and high cholesterol!"
or
Because she wanted to get a good scoop.
or