Both the Yorkshire Terrier and Affenpinscher are toy breeds that can be very vocal and if not properly trained or socialized can be snappy. Even though they are toy breeds, they still need to have plenty of opportunity to stretch their legs and get their blood pumping. The same is true for any dog that is a mix of these two breeds. Expect to spend at least 30 minutes a day of hard play with him or take him on long walks so his body is able to exercise and he can live a long, healthy life. Playing fetch in the backyard or participating in dog sports are great ways to involve you and your dog in exercising.