Hello. I just got my new baby W. Hognose today and put him into his temporary enclosure (he will be put in a 10 gal. glass aquarium once the custom shelving is finished in a month or two). I have checked to see if this box is escape proof, which I believe it to be. My only concern is, there is a lip near the lid that he can get into and climb along (he uses quite an evil-genius technique of dunking himself in his water and then using the traction to climb vertically up the wall). He has gotten into the space behind the lock and tries to "dig" at the crack there with his nose. I'm afraid he may hurt himself in his little monkey-like adventures.
Have any of you used this particular model of sterilite boxes? Is there a way I could block the little lip area to prevent him from getting in there? Have you had any escapes from this model?
Any would would be greatly appreciated.

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1.0.0 Sinaloan Milksnake - Widdershins
1.0.0 Western Hognose - Moqui
1.0.0 Shepherd Mix - Loki
0.1.0 Pug - Quasi
0.0.3 Goldfish - 1, 2, and 3
1.0.0 Husband - Greg




