If you’re a documentary buff you’ll no doubt be well aware of the work of the awkward yet insightful Louis Theroux. One of the most captivating documentaries he’s done has to be his Gambling in Las Vegas episode. There are some real characters there like the mattress empire owner who just couldn’t catch a break, and Dr Martha, the mellow yet mad slot machine enthusiast. This clip from BBC Studies is a good taster of this fast paces, wacky and occasionally unnerving world.