True Story: When my younger sister and I were visiting relatives in Ireland ~10 years ago we took a bus-tour that ended at the Guiness brewery. It was one of those UK red double-decker buses you always see in movies set in England (even though we were in Ireland, go figure), and we were up on the open, top deck. The bus pulled up to a red light behind a cherry-picker and the driver/tour-guide is babbling away, doing his spiel, and must've taken his foot off the brake.

The bus inches forward, of course, and the bucket on the cherry-picker pressed up against the bus' upper-deck windshield and, lo and behold, smashes through it. The driver stops in mid-word and says, "The FUCK?" The lady who'd been sitting in the seat directly behind the window, and was wearing shorts, stands up AND BRUSHES THE GLASS OFF HER LEGS. Blood everywhere, instantly, it was pretty cool.

Uh, er…that's it. Brilliant!