I can remember an event in high school like that. I don't say this to be a hero, I'm not at all, it wasn't some grand noble gesture by any stretch, it was more one loser to another, but I tended to stick up for the kids being made fun of and didn't partake in that stuff, but one time there was an assembly in high school, and a girl got up to go to the stage and I blurted out something like "lose some weight". I don't think she heard, it wasn't that loud, but the people immediately around me must have. I didn't even know her name, and I don't know why I did it because it wasn't funny, but it has stuck with me for the better part of 30 years. I don't know that she knows, I don't know what I would say to her, but it's on my conscience, and in one sense, it has informed how I act since then (so I suppose some good came of it) but it is a low point in my behavior, that's for sure.