There is a vid on you-tube that I like to show people who favor empty chambers. A crook walks into a (I'm going to say what looks like a convenience store to me) business and pulls a gun on the cashier. The store owner off to the side goes for his concealed handgun, and is leaping, twisting, hopping, and flopping around like a fish out of water trying to get the pistol out of the pocket/holster/where-ever/whatever, while the crook just stands there, watching this for what seems like 90 seconds. When the idiot FINALLY gets the gun out, yup, you guessed it, no round chambered! So the idiot is flopping and hopping around trying to get the slide back. Oh, yeah, the safety is on! So he has to take the safety off to rack the slide! FINALLY, and yes, I do mean FINALLY!!, the idiot gets the round chambered, and then the crook calmly shoots the idiot owner, picks up the bag of money the cashier put on the counter (and then dived under the counter, not being an idiot), and walks out.
Even the Pedo Joe supporters on this site should be able to spot one or two, possibly three, maybe four, no more than five, six at the outside, seven at the most, if watching carefully, eight,... well anyway, several things that poor sap store owner did wrong.