Never happened to me yet, but how can you draw a line when your BP won't eat? The last time I feed my BP he keep striking the rat without even biting it for almost an hour. (I am dragging the rat with a thong in front of him) Then when I almost give up, he bites and constrict. I am just wondering how other BP refuse their meal, since I've read that it will happen once in a while. Any input will be appreciated. Thanks.