[cavyinhawaii]

Sounds like a nose up. Its a dominance thing. Who ever can get their nose higher wins- I think thats how the pigs think. Did you have 2 of everything in the cage? It sounds like just do to age your little one is being a pest. My best guess is that he will grow out of it. As far as the bars the only thing that may work in putting a really tall piece of coroplast. That way he can't chew on either bars or coro.