Gives me shivers just looking at the arm snapping potential there. And why would I be happier with the H1N1 virus on my arm? Isn't that where I'm supposed to sneeze?
I once saw a guy cleaning an airport restroom, he opened the trash can lid and pulled out a handful of used paper towel... and used it to wipe down all the sinks and fixtures.

Now that is just plain nasty.
We have an Asian restaurant near here that has a sign in the men's room asking people to not put paper towel in the toilet. I told the owner if he would move the trash can closer to the door people would stop trying to throw the paper towel from the door over the toilet and into the trash. He looked totally bewildered. And no, they never did move the trash can.