Did Max give up bowling for frisbee?
No, Max continues to bowl, but that is a solitary activity. He likes to engage me in play such as frisbee, stick, ball, etc. When he thinks we are going out to play, he stands on his back legs in front of the door.
BTW, we gave our daughter's Great Dane a sixteen pound bowling ball that had two sets of holes drilled in it, and he picks it up in his mouth and carries it around. You have to watch your feet when he is playing with it. And he is not allowed to carry it up on the deck.