I noticed that parent at the playground again yesterday afternoon, pushing a toddler in a swing with one hand, and holding a baby with the other. Soon they are ready to go; crackers are offered to the toddler, the baby is bundled up, and both kids are strapped into the stroller. A typical scene, right? But with one major difference: this time, that parent is a dad. Specifically, a Stay-at-Home Dad, one of thousands who refer to themselves as “SAHDs”... no "Mr. Mom” for them, please.