How come you can't poop and pee at the same time?

Poll of the Day

wwinterj25 posted...
Just....why is this a thing?
it would be a cute image if it weren't for the unwanted moisture, to be fair.
http://i.imgur.com/ElACjJD.gifv
"Most of the time, I have a whole lot more sperm inside me than most women do." - adjl