Are you trying to say that cats don't do well on leashes??? LOL
Strangely enough, my Maine Coon mutt is leash-trained. He'll go with me 4 foors down to the mailbox. I have to carry him down the stairs, because he doesn't understand the concept of "down." He stays on the leash when I'm downstairs taking care of things...and then the funnest thing in the world is to run UP the four flights. Then he waits for me and walks by my side down the hall.
You can leash train a cat...but it ain't never like wakin' a dog!