What's the most unsanitary thing you've seen someone do?

This comment will be really nsfw. Just stating it because the OP didn't tag it. Also, this was absolutely unintended, and I think it was pretty serious. This person probably died.

I live in Mexico City, and sometimes homeless people hop up to the metro to sleep for a while or beg for money or whatever. So, one time I entered the metro and I saw this person (I couldn't tell if they were male or female, they were just so dirty that I couldn't perceive their facial features) who was lying on the floor, behind the doors. They had some kind of bag with them and looked as if they had a hangover, so I just ignored them, as it's not really rare to see these kind of people and most of the times they get agressive if you try to help.

Suddenly, there was a really strong and nasty smell. I could see that other people noticed the smell too, but they didn't care to look at the homeless person. I didn't think of doing so myself until the smell got so bad that I got nauseous. When I looked at them, I noticed they were hiding something below a seat, behind their bag. It was excrement. It was a lot of it, actually. I remember thinking back then that it was impossible for that person, who looked so undernourished, to produce so much of it just like that. After that, I saw a pool of blood under it. The person seemed to be really ashamed and was desperately trying to hide it before anyone else noticed it. I looked around again and everyone was covering their noses, but no one was looking at them. I felt so sick, I wanted to vomit. I impulsively left the metro in the next stop.

Later I regretted not having told a policeman or something. That poor person probably was really sick, and I couldn't do anything about it because I was in too much of a shock.

This is not only the most unsanitary thing I've seen, it's also the saddest.

/r/AskReddit Thread