Thank you... but... I do all that...
I never give her canned food...
She has LOTS of toys in general and all kind of chewing ones in particular...
She does it when I'm not with her, that's a fact, but it's during the night, can she get bored during the night?... besides she has the company of my two cats...
During the day I take her with me wherever I go and she has never chewed the wall on the rare occasions she stays home.
The mistery maintains...