Hello, a month ago i found a little tiny garter snake (8 inches long) and decided to keep it because i already had all the tank stuff i needed. and yesterday, it was perfectly fine, this morning it was digging under the wood chip stuff. i was going to replace it so i took the snake out (it was moving just fine, looked normal ect) and put it in a coffee can (empty and washed) and i took the wood chip stuff out, went to check on it (3 minutes after i put it in) and it was upside down with its mouth wide open, dead. what on earth happened?