my uncle used to own 2 bp's that were housed together when i was a kid. but i remember that he said what he does sometimes as a treat is get a live rat and 1 can of chicken broth and puts the chicken broth in a bucket or container and then drops the rat in there and lets rat move around for a few seconds. then he dunks it real good and puts it in the snakes feeding tub.. is this good for the bp? he said has vitamins and minerals for them and all. anyone know of this or done this?