Lawsuit Lottery?
I had the blue flash and missing eyebrow thing happen to me after a refill once. The valve was leaking. I had a lighter that unpredictably sent up a three inch flame, too. I always had to light it away from me first to see what was going to happen. It surprised a friend of mine and singed his forehead once when he asked to use it and I forgot to warn him.
Oh, and I thought this was another bomb thread when I clicked on it.