Quote Originally Posted by The Summoner of Leviathan
My friends told me that one, I asked why can't you look before you sit down? I never got a satisfactory answert after that.

Okay the other reasons do make sense, it just the toilet paper one doesn't!
What's so weird about it? We need toilet paper. If there's none in our stall, the friend in the one next door can hand us some under the wall...