" Casinos in general—and poker tables in particular—are germ incubators. They are probably worse even than a preschool, since there the surfaces at least get disinfected when the cleaning crew comes through. I’ve touched chips that seem to have been in use since the 1970s without so much as a rinse. Once, I had to tell a player not to touch me after he wanted to demonstrate that he’d washed his hands in the bathroom—by placing a wet hand on top of my arm. "

― Maria Konnikova , The Biggest Bluff: How I Learned to Pay Attention, Master Myself, and Win