Every year when the oldest pupils from our school got their graduation, they are celebrating it with the whole school. In german it's called "Abistreich" ; in english "prank of graduation". No one has lessons. Everybody is celebrate the day on the sport field. The people who made the graduation dress up under a particular theme. This year the theme was: ABILYMP (Abi -> graduation) and (LYMP -> from olympus). This is why they dressed up like greek gods from olympus. Every year is another theme and next year I must dress up for a new one.