I guess I have done a lot of dumb things. I was rewiring my Corvette yesterday and remembered when I first got it, after painting the engine compartment nice and shiny and p0lishing up all the aluminum trim, I was going to start the engine for the first time. I had open headers on it. I evidently dropped a rag under the car and on the initial fire up it backfired. I didn't notice but it caught the rag on fire. By the time I did notice, it had caught some of the plastic body on fire. I quickly pushed it out of the garage and attempted to put out the fire with a garden hose. My neighbor called the fire department. I got it out, but not before that burned plastic and flames ruined all of my shiny under hood detailing with black soot. Since then I have had a fire extinguisher handy to protect my new front end and new paint job. That was 35 years ago and I have a friend who still brings that up and kids me about it every time we meet.