"Don't become the loyal servant of a smiling god." No, he doesn't expect César to get the reference. And he's just going to walk right past it.

"Anyway, stirring the soup and making sure it stays at temperature while I solicit donations to add to it would be pretty helpful. Food safety may not be a science fully explored in this town's time period, but it still matters!" And will keep the newcomer inside in the warm. Win-win!