Chicago lol

Same thing happened to me a month ago. It's 8am, trains are incredibly crowded as everyone heads to work. One car is nearly empty, my partner and I get on, excited to be able to sit. The smell hits instantly. Honestly I would have rather it smelled like feces and urine. It was the worst smell I've experienced in my life, I don't know what it was or how to explain it. There's a filthy woman sitting in the train. She's yelling sexual and racist taunts at the few other passengers. She lifts her legs and spreads them wide and says more vile sexual stuff, then proceeds to shit her jeans. Then, as she rants, she takes her shirt off. This all happened in the 30 seconds it took to get to the next station. We flee to another train car, two other passengers come with us.

By the third stop, someone has pushed the emergency button. Cops get on the platform, the woman runs through the doors between cars (not really supposed to use them but sketchier folk use them frequently) onto the car I am in. She's telling people not to tell them she's there, she's hiding etc. The train is stopped for several minutes as they find her and chase her off the train. She runs away, we see her standing on the opposite platform as we depart the station.