<human>: Condense the text into a few key points

Good morning r/Dogtraining!

First post on this subreddit, because I am looking for some help or suggestions.  My Pit Bull is one of the sweetest dogs I know, and gets along very well with other dogs, cats, and all humans.

I've spent a lot of time training her, and she listens to me incredibly well.  The one area I need a bit more help with is when she is playing with toys.  She gets that Pit Bull focus with them, and almost nothing can break her concentration when it comes between her and getting the toy.  Her Pupils get big, and it's like there is nothing else in the world around her.

When I am playing with her and she's close to me, I can snap and it breaks her focus.  Like literally you see her pupils shrink and she starts wagging her tail and looking at me.  But the trouble I'm having is when she's outside playing with other dogs.  I truly believe that if she could hear me or I could get her attention I could snap her out of it, but I can be yelling to her, and it's as if she doesn't even hear me.

Thanks in advance!
<bot>: Dog has an almost unbreakable focus on toys that I need to find a way to control when she's playing with other dogs, so nothing bad happens in the heat of the moment