Gambler's World by Keith Laumer

A dozen or more low-caste Petreacans, gathered around a long table in the center of the room looked up, startled. A heap of long-bladed bread knives, French knives, carving knives and cleavers lay in the center of the table. Other knives were thrust into belts or held in the hands of the men. A fat man in the yellow sarong of a cook stood frozen in the act of handing a knife to a tall one-eyed sweeper.

Retief took one glance, then let his eyes wander to a far corner of the room. Humming a careless little tune, he sauntered across to the open liquor shelves, selected a garish green bottle and turned unhurriedly back toward the door. The group of servants watched him, transfixed.