My truck, the fire hazard. We went to pick up the lawn mower, and I realized I don't need the charger for my cell phone, so I took it out of the lighter socket and put the lighter back in. For the hell of it, I put it all the way in. It hasn't been used in a while and is dusty, so it smoked a little. But then, when the button popped, it had enough force that the lighter flew out of the socket, bounced off the center console, and landed in the cup holder. Just a little frightening, since the cup hold is full of papers and garbage.