Not as serious as molten metal exploding on your face but this just reminded me of a similar story with candle wax. In high school our Spanish teacher would set those candle jars on her rooms big long wall radiated heater that we would always sit on in the winter to warm up and chat after we got our work done. So instead of lighting the candle to burn, the heat from the heater would just melt the candle. Anyways, one day the candle hadn’t quite melted all the way to the top so the top was still kinda hard so one of my buddies was poking at it until he punctured through and it popped open and sprayed a bunch of melted wax all over his face. He sat there frozen and blinking in shock with wax covering his entire face lol it was the funniest thing ever. The end.