Since Wall-e doesn't enjoy tugging that much right now (and I'm not going to force him), I started getting him used to Mika's food tube in the basement yesterday. A food tube is a plastic cylindrical tube which you can fill with...*dumdumdum*...FOOD! (Wall-e's absolute love!) It can be thrown to increase speed and drive and to use the dog's inner prey drive. He really seemed to enjoy chasing it, and was racing after it after only a few throws. I'll use the food tube to reinforce him for basic agility exercises for now. I might use toys eventually if I decide to train him to like toys, but I think the food tube will, for Wall-e, be just as good.