First i spoke about my experience only with my BCI. Then Sauzo generalized about boas with his statement which is wrong. And now you are defending his wrong statement. If my BCI burrowed only when he had no hide and never burrowed when he had one means there are other BCI,s like him and therefore its wrong to generalize a statement like that about BCI,s. Compare that to Dumeril,s boas, you will never find an owner of a Dumeril,s boa who will tell you that his Dumeril do not burrow whether the snake has hide or not.