Initially, I wouldn't leave ds there, but we had to go to the store quite often while redoing some rooms so eventually I let him. As I walked around one area I looked in to see how he was doing, I heard one of the workers yell at my son! One of the kids was crying, and ds asked the adult what was wrong? The worker snapped "Its NONE of YOUR business! Just go play!" I was irate, and immediately said something to her as I was taking my son out. We had some words, she initially denied anything then admitted what she had done. I said something like "you were trusted with these kids to keep an eye on them and make sure they are safe, not to scare them and act as though they are a bother to you. Maybe you should think if this is really where you want to be..."
After awhile I thought about it and asked to speak to a supervisor, who was very appropriate and apologetic. But- my son won't be going back in there. And, I have seen that same girl still there...( fyi- ds was 5)