I know that kinked snakes are sometimes used as feeders as well as "unimportant" species like garters and water snakes or "worthless" normal ball pythons. I have no problem with a zoo using captive bred common snakes as feeders in a captive breeding program for an endangered or threatened species but I have zero respect for someone who keeps snakes that require live feeder snakes just because they think that their King cobra or other ophiophagus snake is "cool" or that they are too inept or to bloodthirsty to get the snake on a different prey animal.