You are right about the vent part being behind not in front. He seems like a really nice and functioning snake. I would hate to have to euthanize him... What would happen if I tried feeding him to see if he passes it? And i know it is not an injury cause by me because I noticed it as soon as I pulled him out of the container. I just pulled some gunk out of his mouth, I think it was vermiculite, hopefully it might get Better in time. I'm just curious as too how I would go about euthanize get him, I myself do not have the heart so i will probably take him to the vet, but how would others go About this?