Ain't that the truth - I'm the one opening the blue folder - I didn't remember that I had to open it- it's an Emerson Wave and I remembered it opening on deployment.
I may not sleep for a week from adrenaline!
My guess is that you drilled deployment and had prepared for opening the folder whether it waved open or not.
I also had an Emerson Commander in one pocket, and a Karambit in the other that I used in my fights. I remember them opening just fine during my fights, but who knows, maybe I did what you did. All I know is I got them out and went to work with them under stress, and that is what counts.
Funny thing in regard to your second comment- I got a weird adrenaline rush when the video started playing too. Almost like I was reliving it. Funky.