i'm 21 but i get the point. i wasn't deliberatly sticking my finger in the wheel. I was trying to set my brake up on a set of new forks.
For those of a squeamish disposition do not click the link http://www.on-one.co.uk/index.php?modul ... ANN_id=442
Warning do not stick your fingers or thumb in the spinning rotor as it can lead to them getting shorter (not in a good way)