I had a Surefire with a pocket clip in my back pocket. Something from my belt butt pressed it on. As I was driving, it was getting intensely hot. It was under a jacket. Hard to get at. Had to stop and save my butt. Minor burn. More heat from my wife about why you carry such crap on your belt, Commando-boy. Since then my EDC light has a button that is inside a ring, not out in open like the early Surefires. That one is now in the box of stuff.