Ha ha! Maybe we should have a cockers only puppy class?
I had exactly the same experience. Elvis was an absolute angel at the first session that we went to, but the second was a different story. He danced, whined and threw himself against the fence for the whole hour, while all the other pups were perfectly behaved. The trainer was horrid, made me feel really bad and I didn't go back - until last week, which is now about 6 months later, and Elvis has grown out of the mental stage (a bit) so the class went ok. I socialised him in other ways, worked with him at home and now his attention span is slightly longer than 2 seconds, I think we'll benefit a bit more from the classes! Good luck!