My son has swimming lessons there via swimming sch...

My son has swimming lessons there via swimming school MNW.
Having experienced several times that I hear the staff behind the bar speak negatively about the swimming school. Both among themselves and against the people at the bar / counter. I really understand that you would prefer that they swim through you yourself, but hey, it's just what it is. Assume that MNW simply pays the rent from the pool. So keep your mouth shut or talk about it when no other people are present.
This paints a not too good picture!