Passing William Reynolds' table it was hard not to overhear him telling his table something about a bet that he couldn't keep himself from riffling his chips. "€50 if you catch me shuffling the chips!" he was saying to his bemused table, his hands tensely hovering around his stack. This is the poker player equivalent of not being allowed to scratch a particularly vicious itch, or bite one's fingernails: chip riffling is contagious and unconscious - the whole huge tournament room is humming with the click of people compulsively threading, stacking, and doing tricks with their gaming tokens.