Me too. And I would like to add that the person conducting the class should have been all over it as well. I took Dude to a class in Carson where it was absolute chaos. I wound up leashing him and standing from the side and watching because the trainer wasn't ensuring the people watched their dogs. It seemed more like a human socialization while the dogs did whatever they wanted.
Am taking him to a different class now where the trainer is more on top of things... However I never take my eyes off him for even a second, I don't dare let him have any bad experiences!!!