You kicked a little dog? What an asshole
I’ve been known to have a few before grilling and post things that just don’t come across properly. I’ll write it off that way.
Cheers and lets not let this detract from an awesome story. My guess is that this Lab had witnessed this before and knew it was wrong but understood that there was a boundary that could not be crossed unless things became more serious. It did everything it could to communicate this to its masters and they picked up on it. Smart dog and good owners!
So what breed do you have?