That's a great way to learn kanji characters man. If you memorize what that one fiery kanji looks like, maybe even how to write it just to be safe, you'll never make that mistake again. 1 kanji down, a few thousand left. Try to think of traumatic things that can happen for EVERY kanji. :)

Praise be to Japan for allowing a little healthy danger into the consumer market. Danger is good for kids, adults and the gene pool. Here in the US, everything fun and possibly dangerous is recalled, redesigned, covered with several layers of protective plastic, and basically ruined. Thank your lucky stars you're over there, having dangerous adventures and collecting stories instead of here.