I know that hacking is bad, but i think that a post about a month (hacker wars, maybe?) was about a course in which peopel practiced their cracking skills on each others PC's. Is their anyway to practice your skills by using your own computer to attack your own? e.g. see if you can crack yourself?
Hacking with malicious intent is bad. Who better to hack than yourself? Keeps your out of court, out of jail. I think you should go for it. You ask is there any way to practice. May sound dumb, but the best way to find out is to try it.