When was the last time you saw a cat on a leash? It's a pretty rare thing although if you live in St. Paul, MN there is a house where I often see up to 3 cats at a leash. It is on the corner of Jackson Street and E Jenks (I think), across from Oakland Cemetery. How they ever got 3 cats OK with being on leashes I'll never know.
Two weeks ago I drove over to St. Paul to say good-bye to my son, who was moving later that week to Colombia. I stopped at the rest area on I-94 outside Menomonie, WI. The car parked next to me had a cat on a leash that the owner was trying to get out of the car. You could tell the cat hated being on the leash. She was slinking as low to the ground as she could. Eventually she went to the grassy area. The young couple with her were traveling from Chicago to Minneapolis for a visit. They said the cat was fine in the car. She hadn't been on a leash before but they didn't want to risk her dashing out of the car when they stopped for breaks. Smart idea.