Seriously, how did these people not waste away to nothing? I mean here Bill is cleaning up napkins and there are wine glasses (at least) on the table like they just ate, but there is no evidence. Poor props department is poor.
Or maybe they haven't eaten yet, but they are smart enough to know that date night dinner is bad form while Chief is talking about class warfare. Right after he left their non-algae feast showed up and they laughed.