DH says snakes have an "egg tooth" on their noses that falls off after they're born (wat), does this sometimes happen prematurely, preventing them from getting out of their eggs naturally? I guess I can see why this would be helpful to the babies, having an easy escape route - other than the obvious complication of cutting a major vein (this kills the snek), does egg-cutting ever cause any other complications that uncut eggs don't experience?