Favorite glitch/bug stories

So, you will most likely encounter glitches in a video game. I'm sure a good chunk of people here has most likely have experienced one glitch or another. What are some glitches you encountered that is most memorable to you? For me, definitely the Missingno glitch from Pokemon Red/Blue version. I'm not what you say exactly a big pokemon fan. But I loved the heck out of the original games as a kid. Especially red version, since Pokemon was at its hype during the 90's. Anyways, I have fond memories of the Missingno Glitch. I learned about it from a past childhood friend I used to play with. It's just such a fun glitch to exploit massive amount Rare candies/items. I even caught Missingno and tried to use it just in battle out of curiosity. My game wasn't ruined by the way. Another glitch that surprised the heck out of me was in Tales of Symphonia. Back in high school, I played the crap outta this game. But one day, I encountered a random battle near some mountains in the overworld. Everyone except Lloyd who I was playing as became invisible. I wasn't sure what to do, should I try to flee the battle or fight? None of my commands were working, so I decided to flee the battle cause it was the only thing I could do at that moment. xP

not sure if you can consider it a glitch or bug but back in the halo 3 days me and one of my best friends would always go for the vehicles on the maps. he always drove the warthog i always was the gunner, so there i was laying down a hail of fire at the enemy team and then boom we hit something and both of us and the warthog were barely still alive. i had no idea what the hell happened until he finally stopped laughing to tell me we just splatter killed the enemy teams warthog. still probably one of the funniest things to me in my years of gaming