In elementary school, maybe fourth grade, there was this girl who had pretty much no friends and everyone made fun of her all the time. In the parking lot after school one day, her little brother was playing with the cigarette lighter in their car and accidentally caught the entire car on fire (he wasn't harmed or anything). As the car was in flames, my friend and I pointed and laughed hysterically. Then some bigger kid slapped me in the face and asked me "what the hell is wrong with you!?" That was pretty bad.
When I was around 12 years old, my friend and I each grabbed a good sized rock and threw it at this squirrel at the same time. At least one of us nailed the thing in the head, and it didn't die. It just laid there twitching and convulsing. Just suffering. We felt bad so we called animal control and had it put of its misery.
When I was 13 or 14, I was a major pyromaniac and I really wanted to start a huge forest fire in this woodsy area near my school. I would've if my friend hadn't stopped me.
Cheated on my longterm girlfriend when I was in high school. I broke up with her after cheating on her for a week, then a month later I told her about it. I felt really guilty. In retrospect I probably shouldn't have ever told her, because all that did was fuck her up for a while. She was pretty good to me, too.
When I was really young I think I swung at my parents a few times. I hate that I did that.
Constantly called my sister a fatass when I was a kid. I once called my dad a fatass, too. I said it looked like he ate the entire sun. I feel more guilty about the latter.
Stole from family members many times, usually to get high or drunk.
My friend introduced me to a girl that he had a crush on, but she wasn't really interested in him. The day I met her, I made out with her right in front of him while he was asleep. It was awesome.
Anyway, guess I'll see you guys when we're all burning in hell.