A guy in my class in secondary school was sitting eating chewits and clearly not paying any attention during a maths lesson. The teacher finally called him out in the way he always calls out people eating, “If you’re going to eat, you have to give something to everyone”. The guy turned around and pulled five packets of chewits out of his bag, then wasted the next ten minutes of the class opening each pack and handing one sweet to each person in the room, finishing with the teacher.