The annual Hogwarts fall dance and dinner. Before hand the men and women show off their magic skills in a test with different situations. After they are paired up with someone and they have their partner for the evening. All the guys wear their nice suit and ties and the women wear their best dresses. This was Hogwarts way of letting everyone have fun and also see who were the strongest in the dark arts. After finishing the test you head to a table to find out your partner. (Based on a dream I had enjoy)