Rupert is fascinated by the simplest things. Most cats learn not to play with fire pretty quickly, and he singed his eyebrows off during the first encounter he had with a candle. I took this candle away after I finished filming (he'd been batting at it for a little while without injury) and went straight for the nearest lamp to stick his face into. He also likes to put his toes into the heater grate.
I didn't realize until later that he'd singed his brow whiskers off again. No more candles around the house unless they're far away from where he can get his little face!