I got my ass beat and grounded.
I was a pyro from age three. With smoking being the norm it was hard to keep matches away from children. At age three, my mother burned the tip of my index finger on the stove to give me an understanding of burn pain ( it was a controlled burn). Im sure I could sue her if she was still alive. I sort of became a more discerning pyro and later moved on to kerosene and then gasoline. Playing with gas I almost burned the house down. It scared me so much I put my matches away and moved onto torturing small animals (only kidding). There a a lot of good suggestions in the replys, the fear of pain and disfigurement worked for me. Now I have a smoke alarm in every room.