Well...you're highly unlikely to get an answer to that sort of question on this board, or any respectable hacker board that I know of. Please don't be offended by this unwillingness to answer, but most answers that we could give here would be inciting you to break the law, and, if accurate, would be turning you into just the sort of person who gives all of our little community a bad name.

I would also warn you, respectfully, that if you break the law you're highly unlikely to get away with it forever. If you're interested in computers, learn about them - but not for a purpose like screwing over a friend of yours (or indeed an enemy).

There are some fun and harmless tricks you can pull but I'm not sure if the people who run this board would like me describing them in great detail to you. I'm also not entirely sure, to be honest, if that would be the sort of thing I'd like to spend the next ten minutes doing.

Anyway, if you just want to punch someone in the nose, I recommend doing it literally rather than figuratively - at least that way it's just assault! (Just kidding by the way...)

- Freon