1. Man forcibly evacuating nose into sink - Please do not do this.
2. Men who leave floaters - Please try the flush a second time.
3. Man who stands with both hands on hips whilst urinating. - Please stop, this behaviour puts me right off whilst doing a wee.
4. Man who stands with both hands out in front of himself on the wall above urinals whilst urinating - Please stop, this again puts me right off my stride.
5. I could go on, there are plenty more.