Not saying that BPs don't strike at people because they obviously do when they feel threatened and have no other choice, but for an animal that loves to hide and in small enclosed spaces it just seems weird (not impossible) that one would climb into a baby crib. As far as the heat goes, it's the smell that gets them going. Ever try to turn a mouse eater into a rat eater? It's not easy because they smell totally different and ball pythons don't hunt for humans regardless of how small they are. Even the ones that don't eat for a while, don't go around looking for human flesh.