Most people probably don't want their dogs to be ball obsessed, but I do - it not only makes it very easy to excercise your dog but it also takes their focus off playing with other dogs. My current problem is that although Brock is extremely friendly his version of playing is not suited to all dogs so I have to be very careful about what dogs are around when I let him off leash.
I've spent quite a bit of time playing fetch at home and treating him for bringing the ball back, which he does 9/10 times at least. however, get to the beach and there's just too many distractions, smells, other dogs etc etc etc. At this time of year it's not a problem as we know almost everyone but I need to get something in place ready for the warmer months when the other dog walkers emerge. Ball focus is my preference, but i'll take any advice I can get.