We are off topic, but i will chime in. I can't stand it when adults tell kids how great they have it. I do remember being a teen, it sucks. I for one will tell any teen, yes life stays hard, but what you are going through is real and sucky you have every right to dislike it. And any adult that...
Just discharging the weapon will harm no one but it might remind people of property laws they have let slip their minds. That being said I would probably just use a roman candle.