The high speed trundle incident
I'm not sure if this qualifies, but I reckon it's unusual enough to warrant putting it here.

At my last place of work, the boss was frequently conspicuous by his absence. We had a million and one things to do to get out of actual work, one of which was to play trundle football on the office chairs.

The novelty eventually wore off, and we upped the ante. This involved opening the big roller shutter door into the car park, sitting on one of said office chairs, and being launched into the car park at high speed, hanging onto the back of a 125cc motorcycle. The trick was to stay face forward so that you could brake with your feet. If you spun around, they'd drag uselessly along the tarmac without gaining any grip.

The rest of this story involves getting this fundamental part of the flight plan wrong. It also involves a concrete fence post. The result was a large bruse that ran most of the way up the left hand side of my body. Hardly life threating, but still bloody painful.

The funniest part was watching the boss hauling the office equipment supplier over the coals. He was upset at the fact that his supposedly top of the range office chairs all had broken wheels after only a few months of use. We all just stood back and quietly sniggered.
( Horatio P Lemming, Wed 8 Sep 2004, 14:56, Reply)