I stabbed a family member when I was in middle school :x I was having a psychotic break and I don't really remember it, only the aftermath when I was in a mental hospital. The person ended up fine though and I'm healthier now too.
I actually used to steal firecrackers from my local shop but I got caught and it was very bad. Thank god I was 12 cuz i would be arrested :). One good thing bout being underage :)