I was having sex and someone came in the room and scratched my ass

This was a fad that erupted during the race for the 25,000,000th topic. It started with a post like that one, then another topic came saying "I just ran into a room and scratched some guy's ass while he had sex."

The fad continued for about 20 additional topics, all claiming to have been involved in the incident. For this kind of fad, that's impressive.