I have a little and a big sister. They do also use this pc, and they download lots of crap all the time with LimeWire.
Well, I got my little sister to stop downloading songs though, and she has started to listen to Led Zeppelin and other rock bands instead of the stupid rap she used to like
Still the biggest problem is my big sister. I simply HATE her taste of music, and she downloads so much that it's impossible to have control over all the songs on iTunes now. Once I deleted Limewire from the computer just to get it to stop for a little while and she went furious