I got a ball python about a month ago and I was just wondering: is it normal for a ball python to be jumpy? As soon as she hears the cage being opened she quickly balls up... She also hisses at me as soon as a touch her, but as soon as a handle her out the cage she mellows out. Is this normal? Is she aggressive? How do I "tame" her? By the way she is about 1ft. to 1.5 ft. long