As Pratchett said,
“Scientists have calculated that the chances of something so patently absurd actually existing are millions to one.
But magicians have calculated that million-to-one chances crop up nine times out of ten.”
I think it's from Equal Rites?
@harold Man I do love Terry Pratchett.
@freemo Yes! He's the best.
oh google says from Mort.
Anyway it is repeated throughout the Discworld series.