Sometimes, it can be very difficult to motivate yourself to study. Therefore, when you finally managed to sit down and study in peace, it can be particularly nerve-wrecking when your Troll Brain decides to troll around partying hard planting that annoying tune in your head. Apparently, it is getting the concept of “work hard, play hard” mixed up thinking that both things have to happen at the same time (maybe we have to teach the Troll Brain about boolean operators: there is not AND in “work hard, play hard”). Unfortunately, there is no OR in it either. Oh well…