I would tend to believe that the people who joined my restaurant in D1 are more probably not scum unless they were reckless enough not to consider that the restaurant could have featured different kinds of abilities instead of merely being a poor chat, like investigative of some sort, and were instead confident that not to be the case.
Also I would be wary of anything related to meals and food since they are not part of my ability, unless not related to the restaurant, unless my role inadvertently bears a hidden wincon or something of that sort which I seriously doubt.