Birthday boys Dan and Jack gift themselves with a possibly good Season 22 episode, 500 Keys, featuring four key-based storylines that may or may not intertwine or actually be entertaining or logical. Who has the dirtiest of butts? What is the only reason Dr. Manhattan exists? What's the number one video on YouTube? What's your favorite unit of measurement from the back of a marble notebook? All that plus two mugs, giant neon mug helmets, Mike Muggings, and our favorite root beer brand.