I rode a pushbike to work when I was 17, used to start early in the morning (Dark). Well rode the 4 klm to work and just at the entrance to the factory , FELL ASLEEP, rode over a 7ft embankment summersalted upside down and woke up laying on my back in long grass, still seated on the bike which is now wheels skyward. The worst was trying to explain to the other workers how I ended up covered in grass and dirt.