http://www.poochtips.com/ Learn dog training - You can also modify a dog's behavior if you put a mousetrap underneath a couple of sheets of newspaper in the bottom of the garbage can. Learn dog training easily. As soon as the dog begins to put its nose in the can, the trap will snap and startle it. If you decide to use a mousetrap, be sure to put it underneath paper so the dog's nose won't be hurt.