3 guys were discussing whats the fastest thing known to man. The first fella decides its thinking, "You think move my arm and instantly it moves" he says.
The second guy disagrees believing it to be light "you flick the switch and bang instant light"
The third guy says "No it has to be diahrea"
The first 2 guys want to know how thats possible. Well he says......before i can think to turn the light on ive already shit myself :P