There was a Time when I decided to teach my dog how to roll-over. I grabbed some snacks, and tried to teach her, and It was an success after a while.A month after I told her to Sit Down and she "Rolled Over" She could not have forgotten because I tell her to roll over now and then..I currently try to get her out the situation, but all she does is plop down to the floor and roll her self over. When I sternly say No! she gives me her doggy talk like,"What are you talking about". Any OTHER Ideas?