The Class's Little Brush

There's this kid in my class, a little 'Brush' (short for a small brush). Today he brought two self-introductions. Reason 1. He was the only one in the class who didn't submit his weekly diary. 2. He secretly ran off during lunch break and got dragged back ((╹▽╹ ) He's also funny, I can't use the school's internet (eduroam) on my phone, but it works fine for everyone else :D So now he borrows internet from me. My phone has a Wi-Fi hotspot, so I can use my school data as hotspot data. Before, I would just turn off the hotspot and turn it back on. He'd get annoyed, and I'd be happy. Later, I came up with another trick: I started using my mobile data for the hotspot. But my 199 plan wasn't renewed, so my super-slow unlimited data is only 0.1G. This way, he won't notice when I turn off his internet connection XD