There'll Be Custard In The Streets

I like this:

Neil Dixon, a science teacher, in an article in The Observer describes ' an explosion in a custard powder factory in the Midlands in the 1980s. A fire started in a storeroom and custard powder fell into the flames. There was an enormous explosion, which did extensive damage. That was bad enough. However, when firemen played their hoses on the burning factory the water dissolved the unburnt powder and custard began pouring down the streets.'