Today I have done something that can not be undone.
Today, I recovered my gamertag on my 360 since I had put it on my friend's 360 for some things that needed to be done. I do not game online much, so there was no need to grab it any time earlier. But I had the time today, so I hooked up the cable and went online to recover.
Little did I know, my gamerscore on my hard-drive, while larger than my gamerscore was previously, does not accumulate onto a recovered gamertag. As such, I lost 2000 Achievement points. The Achievement points are not what bother me though.
I lost my Mass Effect save, my save on The Orange Box as I plowed away at that, and I lost my file of GTAIV which I had recently restarted.
Most importantly, I lost my Mass Effect save.
:'(