A friend of mine helped me install a radio in my car one winter. We used his garage because it had a nice propane space heater. We would take breaks to stand by it and thaw out our hands. At one point he was doing something that didn’t require my help so I went over and hung out by the heater. I was wearing loose fitting jeans so it took awhile for the air to heat up between the denim and my legs. After a bit I got back into the car and immediately jumped back out when my searing hot pants started burning their thread pattern into my skin.