The New York Times asks, Does Fluffy Really Want To Be An Adventure Cat?
It tells the story of Copurrnicus, who lived through the initial paralysis of suffering a harness (Ric fell over on his side, too, the first time) to become an adventure cat, even going camping. Also hints about how to accustom a cat to a harness and leash. It takes a run at figuring out how to tell if a cat is stressed, but gives up easily.
All told, this means that cat owners should be attuned to signs of stress. But cats, can be difficult to read.
And that comma! Heavens to copy editors!
Another good read is New Clues Point to When Dinosaurs Began Reproducing Like Modern Birds. The key is when they started brooding their eggs, rather than just leaving them in the sand.