Left: Meredith with her family. Right: Meredith in the middle of her older sister and younger brother. (Photo courtesy of Meredith Walker) We, the Walkers, are a tough crowd. Thanks to our loving and clever parents, we saw This is Spinal Tap in the theatre, which was pretty cutting edge at the time. We grew up memorizing lines from Raising Arizona and, when the Sunday comics were passed around, we knew why Doonesbury and Bloom County were funny. We made fun of each other like seasoned stand-up comedians, going for the laugh even if it was a little too sharp. When my sister Megan walked in after a particularly pixie-esque haircut, my brother Christopher looked at her and said: “Don’t ever do that again.” It was easy to get along for the most part because the three of us are close in age. My sister and I are 17 months apart, and my brother and I are 20 months apart. Megan is a Type-A firstborn; anything she does is done well, done to perfection. Trust …