Wow, remind me to never go anywhere with your teacher!!! But you brought up a good point. You are indeed wide open, so to speak, when standing at a urinal taking care of business. Which is why I always try to go into a stall, hopefully one that has a latch on the door. I once knew an on-duty LEO who got the snot beat out of him in a gas station restroom, caught with his hands full at the wrong time...