Link to short story that JKR wrote for charity is now on Leaky

[Zara]

> Potioncat:
> Sort of like another challenge: here's the middle, now write the 
> beginning and end.

zgirnius:
It's obvious, is it not? <bg>

James and Sirius were joyriding on Sirius' newly charmed Muggle 
motorcycle, in a Muggle area. This was reported by some well-meaning 
middle-aged witch, and Arthur's predecessor at the Misuse of Muggle 
Artifacts office was sent with a couple of colleagues to stop them 
and repair the mess they had made. Meanwhile, a couple of Muggle 
policemen observed the teens driving at speeds that made them a 
danger to themselves and others, without helmets, and tried to pull 
them over as well.

Which is the point at which the story begins.

I suppose it ends with the poor Ministry officials coming to, 
Episkeying each other, Obliviating the cops and numerous persons 
around the neighborhood, fixing the cop's car with magic, and finally 
going out for a firewhiskey together after a long, hard night.