I currently live in a hostel and use a mobile broadband 7.2 mbit/s connection which caps at 50 gigabytes a month. He pays me 10 dollars/mth and he doesn't even have the contract. I pay 25/mth and I have the contract till end of next year. I don't want to tell him to gtfo so I was looking for a way I could limit his bandwidth. I use network sharing and the mobile broadband is connected to my macbook pro from which I share the connection by hosting a wireless network. My aim is basically to annoy him until he gets his own broadband. Any inputs? Thank you very much.