Back in high school shop I was working on a car and ended up with gas all over my hands. The engine backfired and set them off. I did my fire dance while I pounded the fire out on my coveralls and you know where. Afterwards the instructer looked at me and said those burns must be bad you look like your going into shock. I said I was going to get It looked at and went and sat in my car for a half hour before I even noticed the burns.