Oh god, that's a bit hard to say. I mean everything I've done has been in gods name. But I did sort of get a small town in France to kill each other- or themselves. Some might consider that mean. They were all sinners.
Others might consider letting Bella's unrequited love last as long as it has. Then again, if I'd ever requited it... or let her think I did- that could be considered even more mean.