I thought, "He's trying to pull a fast one".
or
Because he was feeling crumby.
or
Two. One to screw it in, and one to stab the other in the back and take all the credit.
or
The lettuce came in ahead, the egg got beat and the faucet is still running.
or
A garbage truck.
or
One. You don't believe me do you? I've got photos! See that big blob? Well, just squint your eyes a bit. . . .
or