It's what King snakes do, I doubt anyone here would decide to use one of their BP's as a feeder, I certainly wouldn't, but owners of other snakes likely could. I've seen normals at reptile shows for $20 so who know's perhaps king owners like to provide a snake to theirs every so often. The last repticon show I went to a few weeks back had a guy selling live rabbits right across from a breeder with 12 foot Retics, I'm sure the folks on a rabbit owners/breeders forum would pass out if they saw all the YT videos of Retics feeding.