>>42485819 (OP)
i once played on a roleplay game, where when flying as a pegasus, if you clicked straight up or down and released it fast enough, your character would very quickly start flipping forward or backward for a few seconds before getting snapped to the correct angle. this was already weird enough, but then i discovered that for whatever reason, if you did this is first person mode, you would quickly accellerate to an insane amount of speed in some random direction. and when i say an insane amount i mean an absolutely insane amount. if you did this and missed the terrain it was easy to get the terrain completely out of draw distance. flying back manually would probably take like, 20 minutes to go a distance the bug got you in 10 seconds. so realistically to get back you had to either do it again and hope it sends you in the right direction and right distance, or more realistically just die. if you did hit terrain the game would usually send you upwards at the speed you were going, then if it did, usually force you down at the same speed. it wasn't like hitting a celing though, it happened at different hights, and it didn't always happen. one time it sent me so high that when i zoomed out of first person mode, my pony character model was getting very noticeable floating point imprecision errors from just how far away i was from the world's origin. and although i couldn't tell because nothing else was visible, i must have still been going at an extremely high speed because before long i was forced all the way back to the ground even from those extreme hights. i have no idea why being in third or first person is the deciding factor between some aimless somersaults and the literal highest speed i've ever experienced in a video game, but that was certainly more memorable than any actual roleplays that happened there.