Some time ago, as a whole class of teenagers we were on one week long study/working trip in another city. We brought our sleeping bags and lived in a strange dormitory, several big rooms, each for eight people, furnished only with beds, mattresses and several tables. Not only it was kind of dirty, old and scary, but the caretakers were very mean to us, with hard and rigid regime of morning get up as well as evening set, in few words, it was a nightmare.
Since the first day every member of my group was thinking about the revenge to the people there. Nothing much came up but the day before leaving we decided at some disgusting thing. After the officer controlled us whether we were sleeping in the dark, we moved to one corner of the room, put all the sleeping bags on the floor one by another, so the rest of the room was left. And then, first one after another or later simultaneously we masturbated and ejaculated at every bed and every table and chair. We repeated it at least three to four times, the fact that everyone around did it was quite arousing, so breaks after the orgasms were short, even we didn'tÂ´t see much more than just a silhouette of other room-mates. Most of us were wearing night suits first, opened in the front with dicks pulled out, but after a while we stayed only in our T-shirts to avoid accidental records on pants. The whole act took us about two hours.
In the morning we found dozens of significant spots literally everywhere and the room probably smelled like the ZOO, but we were satisfied with the revenge. The dormitory officials were surprised that so early in the morning we were all packed and ready by the door when wake-up time.