Flash Flood Video Shows Just How Quick It Can Happen [VIDEO]

I've always heard that flash floods were dangerous, but I had no clue that they were literally "Flash Floods". We get flash flooding here in Amarillo, but it doesn't occur like this.

Watch the video below as a guy, his wife, and a friend all video as a flash flood tears through what appears to be a desert valley. These people are nuts. There is no way you could get me to stand out in the path of that thing!