Oh, god no. I have a penchant for short relationships with horrible breakups, followed by awkward conversations months later when I feel ashamed for being a douche. I have a tendency to be way too distant and uncaring about other people's issues. That leads to arguments, which leads to elevated douchiness from me.
But my conscience will eventually get to me and I'll call and apologize, for whatever little it's worth by then. I don't like the idea that I may cause someone to think lesser of themselves, though I probably don't really have that power.
On a good note, my last breakup went well. It was sort of casual anyway (not in a having-sex-like-rabbits kind of way. But in a "let's just hang out and chill. Drink some beer. Go see some live bands" kind of way. First girlfriend of mine that was a gamer. I'll never forget the moment when she saw Twilight Princess in my den and said "Ohhhh! I love Zelda!", and then we looked into each others eyes. And then my roommate said, "All right, I hate to break up this nerd bonding moment, but who is gonna be the DD?"
She and I still get along though.