I'm in my final year of school, an all boys school too, so me and my friends have done some pretty outrageous things over the years. (Harry Potter actor Daniel Radcliffe went to my school, some of the stuff concerns him)
We released a live chicken in the school library without getting caught.
We locked Daniel Radcliffe in a janitor's closet and said "Magic your way out of this one Potter, Alohamora!"
We were on the school roof with Daniel Radcliffe, gave him a broom, and said "Fly Potter! Fly!"
We took flags down from the Geography classrooms and set them alight in the courtyard without being caught.
A boy in year 8 was caught masturbating in class.
Me and my best friend had a certain girl we'd have our way with whenever, wherever in times of need. A friend who we befriended more recently knew all the history of what we'd done, yet decided to have a serious relationship with her, it's a shame that every time me and my best friend wanna talk about her, the only memories we have of her are her whorish ways.
I have way too many wonderful memories, so I think that's enough. XD