I got it from some guy selling it. He claimed he was a breeder but who really knows. Last time I tried to watch my snake ate it just hid in the corner so its not like I can sit and watch it the whole time. It was a small mouse and I checked on it frequently through out that hour. After I get it eating regurlary I will move up to rats but then I will sit in the room with it till I know the rat is dead and gone. I know your not supposed to leave a snake with a live prey but my snake is picky and wont unles in a dark room covered and no noise at all. I had to get it to eat also cuz it was starting to look like it lost some weight but I'm not sure if it had lost any.