I bought a suriname boa about a week and a half ago and every time I get near him or mess with his cage or a neighbor's cage he starts hissing and won't stop until I leave the room. He is fine after I pick him up, but I feel that he is stressed or will get stressed from al the hissing. Last monday I gave him a rat and all he did was hiss until the rat jumped on him and then he ate it. Today I gave him a rat and he wouldn't touch it. Is there anyway to make him hiss less?

