After years of fatherhood, dads tend to lose a bit of their, um, modesty. If Dad would rather sport a pair of ill-fitting tidy whiteys than turn up the air conditioner, then these funny Father's Day cards will be a great fit. Make sure you show Dad how much you appreciate his openness with a hilarious Father's Day card. Don't be bashful about how much Dad means to you. Give him this card. And in extreme cases, maybe a robe.