I was a game tester at Activision for Tony Hawk's Project 8 for both X360 and PS3. I was a 'runner', someone who could run through the game faster than anyone, and could execute any challenge throughout at a moment's notice.
On this particular day I was working on the 360 side of things when another tester needed one last challenge to be completed in order to successfully finish the game. He'd been trying for around 20 minutes but couldn't do it, so I came over and first try did it. The save prompt came up, but I didn't realize that it was opposite of the X360's, which I had become more accustomed to. (the UI was always changing, and on this day the overwrite file option was different from the day before). So I chose the wrong option and I completely wiped out all of his progress. I think it took him an hour or two to get back to where he was. That was really the only mistake I made during the testing process, but I can still feel the sick feeling in my gut after I killed his save data...
