Authors:

It never hurts for potential opponents to think you're more than a little stupid and can hardly count all the money in your hip pocket, much less hold on to it.

Amarillo Slim Preston, Greg Dinkin (2013). “Amarillo Slim in a World Full of Fat People: The Memoirs of the Greatest Gambler Who Ever Lived”, p.21, Harper Collins
It never hurts for potential opponents to think you're more than a little stupid and can hardly count all the money in your hip pocket, much less hold on to it.