Nintendo reserves the right to brick your console following "unauthorised use", in bid to prevent piracy

Right, children are known for being well behaved and following the rules...

I remember as a child playing 2 player Tetris on the original Gameboy, which required a cable connecting the two devices. I figured out if I watched my opponent's height indicator on my screen and saw it drop suddenly I could unplug the cable from my device and not get sent the extra lines. It was a cheat and an exploit that I stumbled upon because I was curious what would happen. That "I wonder what would happen" attitude can now apparently cause Nintendo to purposely brick the device.