when i was a kid we was running accross some roofs, jumping buildings and one of em was a buss garage glass fibre roof, about 50 foot high and me and a mate fell though it,,,,,,, landed on a staircase to the office and fell down the stairs instead of the 50 foot drop

oh and almost hit by a train playing on train tracks as a kid too crossing infront of a tunnel, that scared the fuck out of me too