Oh my. I've been reading these posts talking about Pho 79 and just realized I used to go there (on Hazard) maybe 15 years ago on a regular basis.
I've told this on another board but one day, as we were entering the place, there was a man wielding a huge knife and yelling at everyone. Our entrance must have distracted him and gave a very brave man the opening to jump him from the side and subdue him. Scary situation ended peacefully but with police on their way it was no time to stay for lunch. That day we wound up at a sister location which may be gone now.