Anyone else who tried to harness train their cat?

My cats, who were all indoor cats, looked so longingly out the window that I decided some years ago to buy a harness so I could take them out to play.

The first cat didn't fuss at all when I put it on her. When I opened the door, she didn't go out so I had to pick her up and carry her outside. I put her down on the porch and she came over and climbed on my feet. I don't think she like walking on the bricks. After meowing at me for a few minutes I carried her back in.

The second cat was then put in the harness, and we went outside. She was more anxious to get out and explore, and was starting to check things out when a car, music blaring, no muffler, came flying by. She howled as she dove into the bushes on the side of the house. A few min later she was out of the harness. It took 3 of us almost an hour to pry her out of the bushes.

Cats 3 and 4 didn't get an opportunity to try the harness or the outdoors.

The harness went to the thrift store.

Windows are cat T.V. not openings to a world the cats want to enter.