People pick their nose in the bathrooms at work and stick 'em to the wall above the urinals. It's nasty. Why not go into a stall, grab some toilet paper and do it there?
Also, I see people at work leave the stall and head straight out the door without stopping at the sink. I don't shake hands with anyone at work. There's even a sign in the bathrooms stating that employees must wash hands. It bothers me that that there is a need for these signs anywhere.