Arthur Conan Doyle as reinterpreted by Terry Pratchett:

“..when you have ruled out the impossible, what is left, however improbable, ain’t worth hanging around on a cold night wonderin’ about when you could be getting on the outside of a big drink.”

I was first introduced to the Investigators’ Maxim by a D.I. from Savile Row nick, a very long time ago. He and his colleagues would have appreciated this pint of view.

(the typing error in the last line was accidental , but I’ve left it in as it indicates where my mind was)