Devon Larratt may very well be the most interesting man in the world.  Retired Canadian Special Forces, and widely considered as one of the best armwrestlers ever.  With the sport of armwrestling blowing up in the last few years it would be a great opportunity to get to know Devon better.  He has done some incredible athletic feats like over a thousand push ups at a time, triathlons, and he definitely has some badass war stories. He is also one of the most tactical and cerebral people when it comes to armwrestling and hand strength. He is a master at the sport and a really great guy who places the sport ahead of himself.  Not only that but I bet Joe Rogan would instantly get along with him and have a ton of stuff to talk about... Would probably make for a record long episode.