Thursday 4 December 2008: Evolution
The Whoopee Cushion was one of the best pranks of my childhood - unlike fart powder, hot sweets or dirty face soap, it actually worked.
It takes a special kind of person to realise such a great product could be even better.
"Let's make it half the size, self inflating and attach a keyring so you're never without it!"
This is the sort of thing which make me completely relaxed about global warming and the destiny of humankind - if we can do this, we can do anything.