I genuinely can't decide if I'm being a bit PFB about this, or if I'm right in feeling uneasy.
My DD started pre school in January, and although there are a few things which I'm not totally happy with, I'm generally fine with them. It is attached to the local school, but it's private and we pay for her to go there.
However today, I got there a little earlier than usual to pick her up, as I'd been at a meeting and I wouldn't have had time to go home and come back out. I sat in the reception area, and I was upset to hear a child (not DD) being shouted at. I don't mean a stern voice, it was very loud shouting. 'NO! Sit up straight NOW! Sit up straight, I will NOT tell you again!!' It made me flinch, to be honest, and another Mum said to me that it seemed quite unnecessary. The children are all between 2 & 4, so it did seem rather harsh.
In fairness, this is the first time I have heard anything like this. But I am usually there right on the dot for them coming out. DD has said a few times that the staff are 'grumpy' but I don't pay much attention to that, as she's 3 and she calls me grumpy when I won't let her have cake for breakfast! 
I am prepared to give this the benefit of the doubt, but I would be very unhappy if this kind of shouting was a regular thing. How would you feel about this? Am I being silly or should I maybe have a word about it?
Thanks!