I moved one of my snakes into a new home 2 weeks ago, a showcase cage, and he has wedged himself in the small space above the slideing glass door. He has only come out once. I put a f/t rat in there over night to see if he would come out but he has not. I have tried to pull him out but he just tightens up and I cant budge him, I need to get him feed. Any ideas?