I just read the most recent posts now....
Our class was a mix of large and small dogs. Our trainer made sure that for the first few classes there was a seating arrangment made according to dog sizes. There is no off-leash free time. You will be taught how dogs should be introduced to one another correctly. It was a great experience for us...Tia always thought she was a "big" dog, until she actually met some...she has been humbled

!