Is it normal to use the floor mat of a kid on my dorm floor as a urinal?

When I was a freshman in college there was a kid on my floor that nobody liked. He was a complete asshole and thought that he was better than the rest of us because he was in a particular fraternity. Anyway, this kid would always talk shit about the rest of us on the floor. (He also thought he was a complete stud even though his girlfriend was average-looking at best.)

So he was gone one weekend and then on a Friday afternoon someone took the floor mat sitting in the hallway right in front of his door and placed it underneath the toilet bowl in the men's room (there were no urinals as the floor had previously been a women's floor). So for the next two days everyone pissed all over the floor mat when they took a leak.

By the time Sunday evening had arrived, the entire men's room reeked of the smell of urine. I also heard that the kid whose mat was pissed on was not happy about what happened to his floor mat.

Is it normal to piss all over someone's floor mat?