Technically, Mom and Dad are actually Grandma and Grandpa, but they’ve been raising us since three days after Megan was born when our actual mother—their only daughter—walked out on all of us. We didn’t see her for ten years, not until she showed up one random afternoon two weeks before I headed to Cornell for my freshman year of college. She was finally clean and sober and had a new husband, two stepchildren, and a brand new baby in her arms.