The reason he is blocking Limewire (probably the whole Gnuttella network) is that (young) students don't use common sense and run the internet bill for the school skyhigh. This is because of movies mostly and if he was to allow limewire all the bandwidth that the school has would be used 24/7. At my school students found a way around this and the only thing to come out of this is now the whole internet is turned off most of the time. If someone needs the internet for school purposes they will have to go and ask if their internet can be turned on for a couple of hours.

You wouldn't want that right ??

As for games I don't think that your parents would like very much that the only thing that you learned in school was how to beat everyone else at games (Allthough I know this annoying, but same deal. Students playing games 24/7)