An angel or a devil?
What were you like as child? I don't think I was that bad, although my late mother was always asking where she went wrong with me, until the day she died because I didn't do things her way. Anyone who didn't was a friend of Satan in her book.
However, there was a particularly naughty deed I performed when I was 12, although it does make me grin slightly when I remember it.
My father used to keep his condoms in his bedside table drawer, I had three younger sisters and I decided I wanted a brother. I found a darning needle and sabotaged several of his condoms in the hopes thereof. My parents never had another child. I have several theories about that one, but will leave it at that.