Do you have an Android? Make sure it's rooted then get WifiKill to block selected devices that are connected to the same router from accessing the internet.
he watches netflix on his phone which is a freaking internet hog. for a whole month i had freedom of internet to myself and now im not used to the bad internet :(
ur trying too hard to be squartle
why would i want to be a gay pokemon
because they turn you on
plotting to destroy my brothers internet connection is not an option
Then just give yourself priority. It won't kill his connection, it just won't let him destroy yours.