"Hey, let's make video with no preparation."
Uh, let's not.
I got about 3/4 through before I couldn't breathe because of the stupid flooding the room.
Statistics are 1 out of 10 people attacked with a knife don't make it.
Ironically, 9 out of 10 people shot with a handgun, do.
When someone uses a knife, it's up close and personal - and there tends to be animus...is why.
Surprise is a great force multiplier.
Awareness is the counter.
Few of us would survive a determined knife attack.
The video was good in showing that, and little else.