Comment by personZ

Interesting consideration, but is it a legitimate concern? For the actual "Bunchers", it seems like there are much easier ways of acquiring cats than trying to steal domestic cats. And for cat owners, free roam cats face an endless array of very serious perils, including disease, cars, malicious neighobors/teens, dogs, coyotes, etc. I can't imagine that people stealing cats for research account for much more than a blip compared to the completely banal sources of imminent mortality when a cat runs free.