I don't think that they have that kind of cognition. They operate on pure instinct, and I won't pick up habits from another snake. Chances are this is just random, but I'm really suprised your bp actually got it down butt first. Did the tail fold around? The back legs didn't get caught on her jaw? My BP is a bit of a butt pirate as well, but she usually figures out where the head is after a few minutes and grabs it when she does eventually find it.