Where do the Bullies Go?

Last night's post on bullying was thanks to a story of a teen suicide I read on Twitter recently.  I realized how I had sequestered my own experience of being bullied to the nether regions of my mind when some of the comments I received indicated the people who know me best had no idea this had ever taken place.

So my question of today is where do all the bullies go as adults?  Most people I know can clearly recount their own experiences of being bullied, but I don't know that I've heard any adult say, "Oh, I was quite the bully, never the victim."  It makes me wonder if perhaps there is more shame in admitting to being the Bully (capitalized on purpose) than being the victim?  It must take a lot of courage to admit to purposefully hurting others.  I think that an adult that can admit their part in hurting others must have done quite a bit of soul-searching.