if you insist.
the first dumb thing you said was that, by 16, this kid should be mature enough not to mess with people. you then said that, in retaliation, op should steal the kids homework and throw it away. you seemed not to recognize that that response is at least, if not more, immature than what the kid did.
second dumb thing you said was that if op doesn't retaliate he's a bitch. that logic stops being valid after middle school. in the real world no one believes that not retaliating makes you a bitch. in the real world people normally think people who retaliate to things they shouldn't retaliate to are idiots.
third dumb thing you said was that the brother is lucky not to have charges pressed on him because stealing is illegal. he took op's weed, which is an illegal substance, and didn't even keep it for himself. he gave it to his parents. so, first, thats confiscating something, not stealing. second, you can't press charges on someone for stealing an illegal substance without you yourself getting in trouble for having said illegal substance. similarly, you can, on the other hand, get in trouble for bringing an illegal substance into someone's house.
fourth dumb thing you said was that my questions were arguments. and that my explanation as to why i wasn't arguing was an argument.
fifth dumb thing you said was that i claimed my questions were insults that i claimed were my argument. really, they were just questions, not insults, and i certainly never claimed they were arguments.
sixth dumb thing you said was that the brother is lucky weed is illegal or he would be in trouble for stealing. this is dumb because weed IS illegal and obviously the brother knew that so it isn't at all lucky.
seventh dumb thing you said was that it is absurd to think it is okay to take illegal substances from people when they bring them into your home. this is so stupid i'm not sure what to say. i guess i'll emphasize that is an illegal substance. as in you cannot, by law, carry it around. knowingly letting it exist in your home is also illegal. NOT telling his parents could have potentially gotten the brother in trouble. if someone came into your house with a bunch of cocaine and started railing lines with his friends, you don't think you should be allowed to take it, call the cops, and stop them?