I created them. My co-conspirator and I put them up the other day. So far there have been lots of giggles and no misdeeds in the bathroom this week.
Update 8/12/10: The posters have been up for a week and the bathroom has NOT been trashed once since we put them up. This morning I was in a stall and heard training participants say they’d like to take a copy back to their home office to post. Success!
Very clever but it’s too bad you had to put them up. People should just know better. Ugh, that cell phone thing is one of biggest peeves.