I'm pretty good at stuff

Like playing fetch.  I can do it all afternoon until I drop from exhaustion!  I'll give the ball up when you ask, or tug and tug and tug if you want to play that sort of game!  In fact, I'm a lot better at this game than my foster brother.  He'll only chase a ball once, maybe.  And then probably won't bring it back.  

Come on, throw that ball one more time!