A mix of the Affenpinscher and Norwich Terrier can be a recipe for frustration and disaster if he is not given enough room to run and stretch his legs. Both breeds can be very vocal and can easily become nuisance barkers. When visiting dog parks be sure your dog knows his basic manners and avoid parks where big dogs are playing. Your mighty little dog will think he can run with the big boys and may even try to boss them around. Small breed dogs are able to get plenty of exercise simply by going for a long walk or playing games in the back yard. Be sure to spend a lot of time with your dog doing physical activities.