DEAR PAW’S CORNER: We took our 2-year-old German shepherd to the vet last month to have a cyst removed. The surgery went fine; however, ever since Max came home he has been “playfully” biting and nipping at our hands and arms. We thought we trained him out of this behavior. Why has he resumed it? -- Mary G. in Greenville, S.C.
A: Ouch! A playful nip from a puppy can be annoying, but from a nearly a…