Great episode guys.
I have witnessed several bar fights erupt/escalate in almost the same manner you depicted in your opening segment.
+1 on the salt shaker as a weapon. About 15 years ago I actually used a pepper shaker against a drunk that came at me with a pool stick. He swung and I stepped in to take the momentum of the stick away and had scooped up a shaker off the side-bar and caught him full in the ribcage (cracked a couple too). That stopped the fight.
I know it probably wasn't logistically feasible, but would liked to have seen the fridge penetration tests done on another unit with some items of frozen food in it for a comparison. This is in no way a criticism, as the tests showed a great deal of info.
The knife defense segment was excellent also, very informative. I liked the fluidity of motion and wise use of counter moves. One of those things that makes you hit your forehead and wonder, "Now why didn't I think of that?"
You guys have really stepped head and shoulders above the rest.....keep it coming.