Dragster
When I was 8, we were building a house near-ish to where we were living, so we (me, older sister, younger brother) used to ride our bikes from one house to the one being built, and back, with Dad following behind in the trusty Kingswood (yes, it was brown. Metallic, but brown), to make sure we were OK.

I had a Malvern Star Dragster, which had Sturmey Archer gears - control on the crossbar, gears in the rear wheel hub - but one of the gears was a bit on the dodgy side, so every so often, it would slip as power was put to the pedal.

Anyway...End of a long summer day, we'd well and truly worn ourselves out over the course of the day. So, we head back, cycling back home, when I decide to stand up on the pedals, and power away.

The gears slip, and I drop onto the crossbar, saved by my nutsack. I fainted. Immediately.

Next thing I know, I wake up, in enormous pain, with my father looking over me concerned, and my Sister and Brother pissing themselves laughing.

Apparently I fainted while standing up, and cartoon-like, stopped pedalling instantly, and toppled over sideways.
(David CopAFeel Used to be The_Elcat - Spouting crap since 1970., Mon 17 Jul 2006, 2:17, Reply)