Dear All,  I am hoping someone has some advice/answers for me.  My male Staff is now nearly 10 months old.  Over the past couple of months he has started to become selective on his food.  Sometimes he will scoff down frolic without taking a breath, other times he does not want to know, yet if you use a frolic to reward him he'll eat it with almost a smile on his face.  Also he is doing this with his meat meals, and sometimes with his treats he will have them several times and then refuse?  I don't understand is it his age?  he used to eat absolutely everything you put infront of him.