Real “Dad Heads” need no introduction to Justin Halpern! As the author of the bestselling book “Shit My Dad Says,” Justin has endless stories about his father, a man who hardly ever cried. A man who would go out on the Sea of Cortez with a band of outlaws one month out of every year and return with hundreds of pounds of fish. Plus, Rory and Justin bond over what can only be described as dad rage.