I'd love to train Bobbles to walk on a leash, but my friend tells me cats throw themselves on the ground and become dead weight. Since Bobble fears mere visitors, I doubt she'd be interested in the GREAT
OUTDOORS.
OP, are you walking the cat or have it tied up outside. With walking, the leash would naturally loosen when you stepped closer. If your cat is tied up outside, I agree you should switch to a harness. It would be much safer, and it would eliminate that pull feeling around the neck.