I don't think its unreasonable to request someone address you with a professional title in a professional environment. "We're on a first name basis here" is cu

I don't think its unreasonable to request someone address you with a professional title in a professional environment. "We're on a first name basis here" is cultural, unlike the other stuff mentioned, so there's that. But its pretty bizarre. Would you also fire them for wearing business attire instead of shorts because "this is a casual environment?"