In the video (the action starts around the 4:45 mark), you'll see him scoop up a female -- with a signature red hourglass shape on its abdomen -- from a web it was spinning in the fire pit in his backyard and let it begin exploring his arm. As she crawls up and down his arm and onto his hand, he notices her covering him with sticky spiderweb, prompting him to nervously remove her for fear that she'll get caught up in it and startle herself, and lay a good bite into him as a result. It should go without saying, but don't try this at home. For that matter, if you're ever bitten by a black widow or any other type of venomous spider, seek medical attention immediately.
Deep breaths, arachnophobes.