My golden mix is coming up on 5 months, and while he's great inside the house, the second we step out the door his brain completely melts. It's like I don't even exist. I can have a handful of treats like chicken or liver, and he will literally look right past my face to stare at a blowing leaf or a piece of trash.

It's getting to be a real safety issue because he refuses to check in with me on walks, especially near busy driveways or streets. I've tried engagement games but he just gets bored and tunes me out. Does anyone have recommendations for a good dog trainer or facility who specializes in outdoor focus and building engagement?
We really need some professional guidance. Thanks