Dad has taught you a lot, from an early age and upward. Like, how to slug it out without other babies while you're both being held up in harnesses. Yup, your wise, wonderful and sporting papa is an unaccredited professor in the school of hard knocks, always in your corner. And for all the great parenting man has passed on to you, done to train, instruct, guide and encourage you, he's fully deserving of the hilariously hard hitting Happy Father's Day joke card available here. Your top ranked Pop will get a good laugh upon being gifted the hysterical, action packed, child combat Father's Day gag greeting.