ok i have a year old gsd male that when i get home from work he keeps wanting to play. now i know they are driven and want to work. but when he does not get his way, he barks and wount stop. then i get mad and the wife gets mad. so you see where this is going. i do take him to a dog park, and when we get there the dogs that have been going there longer then him gang up at the gate. he gets scared and then goes off on his own. i want him to play with the others, so any halp here would be great? but we do play in the yard with a ball, and he goes good. but then when we get home or done playing ball he just wants to keep going. now this might be silly, but would food make the extra energy??? as again any help????