After my last dog was attacked in my back yard by another dog like that, my patience for aggressive dogs is zero.
I basically forced a neighbor to put a fence up. They'd let their dog out around the time the school bus dropped kids off. Every day that little fucker would aggressively chase little kids. I snapped one day when I looked out my window and the dog had a little girl crying and cornered. It wasn't until I walked out of my house with a gun that the neighbor ran outside with a leash. It was almost like they were watching and enjoying seeing their dog attack people walking by their house. As they ran up I said if I see it happen again I'm gonna shoot it. They had surveyors out the next day to put a fence up.
I'm a huge animal lover. But after hearing my dog yelp like the dog in the video, I'm done aggressive dogs. I don't give a goddamn shit.