Edan is now a year and a half old and after he got into anti-freeze and was extremely sick for a few day he forgot a lot of his training. I don't know if this has something to do this the anti-freeze killing some brain cells or the fact that we didn't do much along the lines of training during this period. Some of the big things he forgot were fetching, sitting, and giving me his paw. Before this he would sit on command, and before i even taught him how to fetch he would already bring the ball back. Now he doesn't even come to me when he gets the ball. I have been trying to retrain him but he doesn't take treats when i try to give them to him, he just looks at it and slowly walks away with his ears back.