I've run into that in the FP stores; maybe some of them are really unhappy in their jobs so they take it out on the customers. I knew a manager like that; she always seemed really unhappy and once, she looked like she had been crying. I remember once before that, I wanted to see a new bag that they had in back stock, but they refused to sell it because it wasn't on the floor set yet. I then learned from another manager at a different store that that was illegal and that they should absolutely promote sales if they have the bag in stock whether it is on display or not.
Yeah I pretty much refuse to shop at my local boutique unless the only nice SA is working. I think the manager dislikes me because of this. I asked if my SA was in one day and she said no that she could help me instead. I politely said I would come back on a day she worked. She gave me a nasty attitude and then the next time I saw her a month later she refused to allow a FOS return in her store even though my nice SA wanted to do it. I took it to my outlet a week later and told them what happened. They told me to avoid her like the plague because she treats everyone awful. They all have a poll going as to when she will finally get fired.