There was a thread, years ago, titled, "Is it OK for a 29-year-old to date a 19-year-old?"
You had made a parody thread, "Is it OK for a 19-year-old to date a 9-year-old?"
As I was scrolling through the threads, my co-worker beside me looked over, paused, then said, "Hey, can you scroll up a little bit?"
So I did, and then he said, "A little more."
So I did, and there was your thread, and he just sat there staring, and I had to explain to him that it was a joke based off another thread, and then showed him the timestamps to prove you made it after the original thread.