I would recommend not pushing the issue too far with us Yankees. You might find a splattering of piss on your head from above you from the guy you pissed off and decided to take a leak on your noggin from the next stall.
I am that guy in the stall next to you thinking that stinky SOB that poops at the same time every day needs to adjust his schedule and do his duty at home. I know... Why go number 2 at home when you can get paid for it right? I also think there is something wrong with a guy that walks up next to you to use a urinal when there are other open urinals he could use, or even a stall for that matter. Why crowd someone when you don't have too. Not sure why it matters. It all goes to the same place.....