I used to own a small construction company in the US, we did framing and some remodeling.
Sometimes on new developments, they wouldn't put enough port-a-potties and they would become nasty and unusable within 2 days.
And even when they were clean, I'd rather get an empty box and take a dump in there and then discard it inside a garbage container or something.
Not the kind of moments I feel proud about myself when I think of it. But better than using those nasty plastic toilets.
People are lazy nasty bastards sometimes.
I'll share my "not so proud moment" hahaha. So, my mom use to make me do the family laundry, every weekend, at the apartment complex laundromat. I had to STAY there all day, cause if not, people would try to steal your stuff. Well, there is a bathroom in there, but somebody fucked that up for everybody. So, I take my knife, and pop the lock from the side. Then, they got wise that people were doing that, and added extra metal to prevent it. Well, I had to shit really bad, and it was either go home and risk wraith from mom and theft at the laundromat, I closed the door to the place, and shit in the big trashcan, and wiped with fabric softener sheets lol.