How often and long they twirl their mustache.
This is not a dead giveaway as it will take some time and observations but, how often they react to adversity by blaming other people.
Reminder, if everywhere you go smells like dog doo, maybe check under your shoe.
Depending on the restaurant and the bankruptcy proceedings, the recipes may be considered an asset that can be sold to recoup losses. Those assets only have value when they are secret.
Wait... Isn't this one a Lore?
To accommodate a larger audience for the inevitable melee-combat-based mutiny.
It's the dominant open source competitor. I think Google's office suite would be their largest overall.
Star Trek adjacent, but the Orville had an episode like that I think.