What's the weirdest or worse glitch you have come across in a game?

[techhunter80]

JOKA said:

This wasn't a "game" per say, it was a PS2 demo disc that came with a PSM magazine (or OPM, whatever). When you tried to a play a certain demo on the disc, it erased all of your save files from your memory card!

Guess who that happened to? This guy!

Guess who was 75% of the way through GTA: SA? This guy!

Oh....my.....god....I can't think of anything worse than that could had happened in last gen like that. Sony why do you like to see us suffer so! But I know how you feel about with GTA: SA, my sister would liked to mess with me by deleting some of my game saves. And she deleted GTA: SA six times before I could finally beat it.