I realize they aren't dogsMine seemed especially chill so I tried gently touching around the head to see if that would cause any striking or hissing which it did not which is why I included it. It's interesting you say that about the tongue, because others have said if they are flicking the tongue intermittently and looking around they are smelling and exploring, so Im not sure what the truth is there. The snake was not handled except for when it was brought home until two days after it had eaten. I haven't seen any striking, or hissing, and he is due to eat again in a few days. I won't handle him the day before feeding, day of, or two days following.