I worked at a summer camp years ago, the Male ages 18+ staff showers was one big room with a bunch of shower heads and no dividers.

Everyone left their soap on the shelves in the showers because it was more convenient than carrying it too and from your cabin every day.

Well one day myself and 4 of my friends were in the showerehouse showering and one of us starts going off about how shelf space is always being taken up by people not in the showers; to which my other friend responds by grabbing someone else's shampoo and spraying at the friend complaining.

This turns into an all out soap brawl/ fight spraying everyone's soap everywhere and turning the showers into a giant slip and slide.

Even though we were all naked, no one was aroused, it was just a fun soap battle with the gang. Everyone that left their soap in the showers was super pissed afterwards that we wasted all their stuff, it was worth the laughs though.

All of us are still very much heterosexual