I've always tried to keep my firearms skills up to date but "back in the day" when we just to be range rats we'd piss off the old Range Masters with the crazy scenarios we would do in order to simulate "real life" shooting. Nowadays everyone is doing it!!! :)
The following video is by Gabe Suarez and he demonstrates some interesting gun craft. I haven't trained with Mr. Suarez yet - but he's on my short-list of people I need to meet and work with. Enjoy the video and contemplate if your firearms skills are functional or fictional.