So I just picked up boa for super cheap, the guy seemed really nice and stuff, assured me there was nothing wrong with the boa, and that he just didnt like snakes and tried to get into them. Anyways, it's a hog island female, probably around 3 feet long. I heard a hissing like sound, opened the container and she froze and looked at me and opened her mouth a little bit and her body puffed up, is this hissing or an RI? Well I guess you guys wouldn't know if it was for sure an RI, I guess my question is, is it possible that it was just hissing and is there a way to distinguish hissing from an RI?