What's your biggest gamer achievement?

I realize that this is only an achievement to me, but when I got the Poeples Hero achievement for Skyrim. I was playing through as myself, trying to help everyone I could. I just wiped out the Dark Botherhood and it popped up. I was honestly touched, as I really cared about those stupid digital poeple I was saving. It made me feel like I was really making a difference.