Me, I don't hold grudges. I pay back what's been done to me, and then let go of it. Ain't gotta forgive in so many words--some people don't deserve it. But you don't have to let that shit eat you alive, either.

As for the worst thing I ever did? Hell, I got a long list of times I screwed up. Thinking back, the worst is probably the time I mistakenly killed somebody I shouldn't have. It's tough nearly impossible to get over all the really miserable fuckups, but all I can really say is 'try to pick up and move on'.