Your first reaction upon seeing Kerlon, the once budding superstar Brazilian kid who never blossomed, and his unique ability to dribble the ball with his forehead will probably be "Wow, why had nobody thought of doing this before!" But keep watching the video above, and by the time you see Kerlon end up on the bad side of a couple nasty hockey checks and one defender's attempt to ram his foot through the kid's chest, all with the refs more or less saying "Eh, what'd you think was gonna happen?" you'll realize why it never caught on.