How have you guys gotten your cats to walk on a leash? I bought a harness today and put it on my cat and he was so angry with me. He lurked around the apartment giving me the evil eye for putting it on him. I let him get semi-used to it and then took him outside with the leash. He was so freaked out that he would just curl up in an immobile ball. So I carried him over to some grass and that got him a little interested. Then he managed to twist himself around and slip out of the harness! As soon as he got it off, he completely changed, he was so happy, rolling in the dirt, prancing in the grass. How can I get him to ignore the harness/leash and just enjoy being outside?