She looked up, surprised, from her sandwich. It was probably her seventh. Of course, they were tiny but... she should really slow down eating. The Countess would be too polite to mention the breach in manners. "I could not impose on you in such a way," she demurred, even as her expression likely said, quite desperately, yes, please. In her household, pleasing the Countess was considered wise in all situations - the Lady would certainly never refuse.
She picked up her teacup to avoid taking yet another sandwich and sipped at the tea, which was now lukewarm. And hoped, guiltily, that her polite denial would be overridden.