Wearing the wrong clothes is indicative perhaps of a certain arrogance and superiority. But, from the point of view of others, behaving as they did in a live performance is a far worse symptom of the same attitude, as it really affects the enjoyment of others. You don’t have to look at their unpleasant clothes, after all, but you can’t avoid hearing them. Horrible behaviour.
Who is the ultimate boss of the bar manager in the hierarchy?