Oxford and Cambridge both have a number of historic traditions – some of which could be considered bizarre. For example, there are formal ceremonies for which students wear gowns, including matriculation (joining the university), graduation, and formal dinners. Moreover, you wear a different flower for every exam, usually a carnation. For your first exam you wear a white flower, for the middle exams a pink flower, and for your last exam a red flower. Be prepared, too, for a ‘trashing’ at the end of your exams. That's when a student comes out of their last exam and you throw things at them. It used to be flour, but now it's any kind of food.