Thank goodness you found him. Sometimes, depending on the kind of cage you have, cage clips are not always the problem. Take our kingsnake for instance. I had him in a cage that used to be in habited by my leopard gecko. Since the gecko had no chance of slipping through a small gap between the cage top and the cage frame, I didn't think much of it when it housed her (the cage originally had one of those tops that slide in so when I used a regular top, there was a small gap), but when we moved our small king into the cage, one week later, he went missing, and we haven't found him yet. We've kind of given up. So always check to see what kind of cage you have and what kind of top you are using also.