I used to be the housekeeping/maintenance supervisor at Kohl's Department Store. I only had the job for two months an quit. Here are all of the nastiest things I experienced in that time period:

-Someone lied about their pet being a service dog and it peed in a fitting room.
-Poop smeared all over a toilet stall.
-Half a cheeseburger in the middle of a rack of clothes.
-Use sanitary napkin stuck to a dressing room wall.
-3 Open dirty diapers on the fitting room floors, one was hidden by discarded fitting room clothes.
-Poop smeared in a little boys fitting room. (Carpet, mirror, & walls)
-The puke of many sick children found in carpeted isles.
-Blood from a bloody nose on the carpet.
-And some things that would probably not be acceptable for discovery channel(found in the mens' stalls).
-And I got ringworm on top of all of that.

I know the feeling.
I briefly drove a parking lot sweeper truck and people would use the parking lots for disposal of ALL kinds of waste.Dirty diapers and underwear and used"protection" were just examples that I can barely mention in a family paper.
Several times,I had to stop what I was doing when I'd find a knife,firearm or other weapon with blood on it and call the police about it.They were never happy to get a call and find the complainant driving a vacuum truck due to concerns of what I picked up that I didn't know about.
Other than the ire of my boss for delays when dealing with the law,I got a lot of grief from supervisors for always having a box of nitrile gloves at hand because I was also attending EMT classes at the time and they thought I was being "too" cautious.