Because they don't have a leg to stand on. Note: I'm a right leg amputee and I made this up myself.
Because they don't have legs to walk, man.
A: A Rottweiler in a playground.
Benot B. Mandelbrot
Dead In A Nasty Accident.
A: Scratch Paper!
Note 7
I stand corrected." -From
Because he's lack-toes intolerant.