Dancing While Carrying?

I was shocked to see the viral video of the FBI agent who accidentally shot someone while dancing in a Denver night club.  This guys has moves but loses his gun while doing a back flip.  Then, he accidentally fires a shot while quickly grabbing the pistol off of the floor.  Thankfully, no one was killed by his shot.

Observations:
1. When carrying a gun, you should always be aware its presence.  This should obviously prevent you from attempting back flips or doing a ninja warrior course.  If you need to do acrobatics while carrying, you should get a level 2 retention holster.
2. This would have been a non-event if the officer had exercised trigger finger discipline.  The second rule of safe gun handling is to "ALWAYS Keep Your Finger Off of the Trigger Until Ready to Shoot."  A gun will only shoot if the trigger is pressed.  This was a stressful situation and the agent wanted to quickly cover-up his mistake.  Unfortunately, he grabbed the gun by the trigger instead of correctly picking it up with his finger off of the trigger.  
​3. I notice that the agent picked up the gun with his left hand but then holsters his gun with his right.  He appears to be a right handed shooter but used his left hand to grab the gun since it was on his left side.  One good take-away for all of us is to practice safe gun handling with our non-dominant hand.