After 10 weeks of owning our corn snake who is like 11 months old, it is still skiddish. When going in the tank to hold it, it runs to hide. When putting him back after a feeding yesterday he rattled his tail a lot at my daughter. She was putting him back in and he slid out of his feeding container into the tank and gave her a good raddling. What does this mean? He's scared? He doesn't like to be held? I told her to start holding him at least 10 minutes a day from now one (of course after he's digested) because he is getting less accustom to us instead of more.