Hey there,
Thanks for your precisions.
My 'waving' comment wasn't about the shooting but mostly after having shot the gun: mostly 0'58'' and 2'30'' into the vid, when you and your wife show the results (or lack of

)to the handycam: I have the feeling that, focused on talking to the cam, both of you weren't paying full attention to where the gun was pointed: briefly towards the person holding the cam or towards own body parts. The gun is supposed to be empty at this point but, as Mbailey stated: 'no such thing'
What made me cringe the most: 2'53'', after having loaded your gun with one bullet, the line from the muzzle is passing through the person filming or dangerously close to it. I'm sure that you realize that it would have been much safer to load the gun already pointed downrange.
This brings me to an observation of mine: dealing with cameras (handycams, gopros, even webcams) by filming or being filmed and commenting take a noticeable chunk or your attention capacity. From your post, you seem to be safety conscious, but I get the impression that you let your hands get a life of their own while you were concentrating on telling stuff to the cam.
I'm most curious about a possible increase of accident rate in a lot of activities (skiing, motorcycle riding, paragliding, skydiving,... shooting?) when cams are involved due to the distractions that they cause (There is also the tendency for some people to increase the risk taken during the activity to make the recording look 'more awesome', but I'm not discussing this here).
As a disclaimer for all this

patronizing, I'll just tell you that I was involved in the investigation of an accidental shooting of a LEO by one of her colleague who was making his gun ready before a training exercise. The victim asked her colleague to be careful to the pointing of the handgun, to what he responded that it wasn't loaded and pulled the trigger to prove it, but killed her instead. This case made a lasting and painful impression on me, mostly because it was so avoidable. It also made me realize that, whatever I do, I'll never be good enough to be confident that I won't screw up, so I try to take as much mitigating actions as possible. I also promised myself to never shut up when facing perceived unsafe actions, even if I have to look like a fool afterwards because I was wrong. Better that than the alternative...
That being said, you're lucky to be able to share those moments with your wife. I'd like to do the same with the Missus but the regulations here kill all the fun with an awful lot of red tape and some taxes, so we haven't done it yet...
