Cats

There's now a national agility organization and competition for cats. The cats learn to run across obstacles around the house, sometimes for clicks and treats but more often for clicks and chasing a feather lure or some other toy through the course. Cats love it and take well to running new courses in new places. The courses are set up inside an area fenced with special wire net panels that cats can't climb, so there's no risk of contestants going AWOL. The first major competition was won by an eight month old Himalayan kitten (a long-haired breed you'd expect to be a couch potato, but not this one.)

Trying to desensitize and tame a hissing, feral cat, whether kitten or adult, can be a slow business. You can speed it up immensely with the clicker. Use a highly-preferred treat, such as canned tuna or any freeze-dried fish cat treat. Approach the cage, let the cat retreat, put a pea-sized treat in the front of the cage, click, and instantly back away.