I've witnessed this before.....by a coworker in the office. At least go to the bathroom, right? ALSO: don't cut your toenails in the locker room sitting next to me while I try to change into my workout clothes as quickly as I can to get away from you. ALSO, it's NOT OK to hock up and spit a loogie in the gym shower.
Leave midwestern "hicks" out of it. I've seen New Yorkers do shit like this. And in the Denver International Airport, I sat near some reasonably well-dressed college kid as he fiddled around with his iPhone and repeatedly spat on the carpet under where he was sitting and covered the little puddle with his shoe.
" You sat at the bar in a hipster place ... and proceeded to clean your teeth and gums while chatting with your friend and the bartender as he changed the vinyl on the turntable."
They learned it by watching Portlandia because they're hipsters and have poor hygiene and all have vibrating traffic cones shoved deep up their asses. I think about that last part a lot.
Also, since the gym was mentioned: Old hairy guys, keep your boners away from me when you're in the gym shower. And DON'T stand naked with one leg up on the counter and then stare at me while you use the hair dryer on your bald head.
That sentence says so much.