Putting your dog in the cage and tying the dog up is not the answer. The dog needs to unlearn this unwanted behavior.
Check out this page on FB
Happy Dogs
Houman is a dog behaviorist. He solves alot of unwanted behavior in dogs. The aim of the training is to teach the owners what to do.
You can contact him at 017-611-0966 for more info.
He had a dog going through baby diapers in a dustbin. All solved easy peasy :)
Good luck