A breach is reported to the desk. Signor Rufus confirms it, sighs, and rings the bell once. The guest is told, kindly, that they are Excommunicanis, and is given one hour's grace, the courtesy of the Den, to finish their drink and gather their things.
At the end of the hour the Den does nothing at all. That is the point. No purreus is accepted, no water is brought, no door opens, and every guest in the building suddenly has somewhere else to be. Requiescat in pats.