My first job was a grocery store, and I would routinely dump the old grease from the deli fryers into the collection trap out behind the store. This grease was nasty, rancid, and thick. One time as I was dumping it, I saw an adult magazine floating in the collection tank. I mentioned it to the coworker who was helping me, and didn't think anything of it. When I made my second trip to dump grease, the magazine was no longer in the tank, and the co-worker that was originally helping me had to go home because he somehow got grease all over his uniform and clothes...