I think there's a little more going on than teaching a child how to handle and respect a firearm. The father is teaching that kid how NOT to handle a gun. We either have a future jihadist or future gangbanger here.
Depending on the circumstances what he's saying could probably be very reasonable.
Now, knowing what we already know about the guy (from the picture of his kid, and the audio portion of the tape) would any of you guys critical of his inarticulateness dare walk nekkid down the street in his part of town?