Trent Kimball, CEO of Texas Armoring Corporation (TAC), was tired of customers asking if his company's bullet-resistant glass in its armored cars actually resisted bullets. So he did what any reasonable CEO would do: he asked his employee to shoot at him with an AK-47. It's loud, scary, dangerous, and completely awesome.
The last time I visited TAC there was much shooting at various kinds of bullet-resistant glass, steel, and kevlar. We all joked about someone getting behind the glass during the live-firing but no one was crazy enough to do it. Until now.