Shortest lived PC in Mysantia

Ok so my younger nephew rolled up a character late, we were just about to start a big fight w/ multiple dragons. I told him to put himself anywhere on the map. He placed himself directly behind the barbarian who was attacking the biggest dragon.Dragon wins initiative to start fight, breathes and kills the new first level fighter. PC lived exactly 1/2 of one round. Looking back on the incident, I barely remember it, so I don't know if I was being an ass or not. Probably. That was back in my "killer DM " days. More on that later