I've had my ball python for over 6 months, and for the first 4 months of having him he was my pal. i handled him a lot and he was fine with it all the time. I moved him from my apartment back to my parents house 2-3 months ago and haven't handled him much since then. Now, whenever I open his tank to go and handle him he gets really aggressive and strikes at anyone who tries to reach in there. I don't know what to do to calm him down and make him my buddy again! Any help is appreciated