For every boring lecturer, there's a bored student. And for every bored student, there are four options. Sleeping, doodling, chatting with your neighbour about just how bored you are or fooling around on your laptop. The first two are harmless and all parties remain happy. The third leaves the rest of the class scowling and growling at you, while the last invokes plenty of different reactions that range from outright anger, to amusement or even glee.