What makes THE perfect burger? Olly travels to San Francisco to meet Thrillist's Kevin Alexander, and sample two of the best burgers in California. Along the way, he learns how a combination of shredded lettuce, a careful choice of condiments and a fatwa on side orders can help you achieve the ultimate burger experience. In The Zeitgeist, Ollie Peart considers the growing fad for beard transplants and reveals 'the science' behind why we're attracted to fireworks. And, in The Fox Hole, Alix advises a listener who's lost that loving feeling. If you'd like to send in a question for Alix Fox, leave us some feedback or buy us a beer, just visit modernmann.co.uk Our song of the week is 'So They Say' by Rukhsana Merrise - from her debut EP, September Songs Presenter: Olly Mann. Contributors: Ollie Peart, Alix Fox. Producer: Matt Hill. Theme Music: 'Skies Over Cairo' by Django Django. Graphic Design: Jenny Robertshaw. Copyright: Olly Mann 2015.