There are a few places where you can make so much violance you can,without getting busted.

1. Climb in the trees Around Bullworth Academy.

2. Left of the entrance of the BMX park in New Conventry,there is a ladder,use this ladder to get on the roof of some houses;from this point you have a great shooting sight,without getting busted

3. In the Girls's dorm living room,there is a soda machine.jump on the sideboard,next to the soda machine.then jump on the soda machine.Now thake your katapult and shoot some girls.the prefects will come after you but cannot catch you.