In the last decade, the number of stay-at-home dads has doubled, making up 3.4 percent of the demographic. While it's still a relatively small percentage, it's certainly a trend that's on the rise and has become more commonplace on TV, thanks to characters like Will Arnett's lawyer-turned-full-time-dad on Up All Night and Sam Jaeger's Joel on Parenthood. Check out more about the growing trend from our friends at The Stir.