So my young show prospect was as usual out in the fenced dog yard while hubby was tossing around a few a few playful tennis balls for his Nitro pup (tennis balls are free for all play and the dog knows it) I'm cooking dinner and glancing out the kitchen window. My boy is all of a sudden very focused and rather than chase his playmate he is very seriously concentrating on the fall of the ball. Honestly he has been for the past three days marking with the intensity of Buds, the Nitro pup. The dog just does conformation and OB. His sire is a CH/MH and his maternal grandsire is a MH that retired with 20 MH passes.