Zero. Feet are feet shaped.
If you are stuck at a red light, its the time that it takes for the occupant of the car behind you to honk his horn when the light turns green.
He left his foot on the accelerator.
Man, this guy just keeps shooting himself in the foot".
Brent out of shape!
A tray shaped dinosaur. Credits go to the wife for that one! She still giggles when she tells it.
In square feet.