Pretend to break my wrist to get out of a Science test in Year 8. Pretended that I fell on it really hard. Nurse at the school bandaged it, called Mum, got XRays. Long story short puts me in a wrist cast for 6 weeks when I was fine.
Another story involving NYE, a large bottle of clear liquor and mooning 4 lanes of traffic springs to mind, but that's for another time.