Hello, I have two agkistrodon contortrix. They are very very nervous, aggressive and fast. I covered them with cloth in oder to not cause stress when I go in front of their cages. I think if I remove the cloth, they can accustom oneself to see me, but they are difficult to eat and I´m afraid of refusing the preys. what do you think? will they calm if I make they usually see me? Regards.