I used to drive around with a fire extinguisher in my car. Then I thought if I had one I would be compelled to stop if I saw someone else on the side of the road who needed extinguishing. You read about these people all of the time. "Good Samaritan dies trying to put out car fire". So I got rid of my fire extinguisher. Also, if my car caught on fire I would like it to completely burn, the last thing I need is a half burnt car.