DURING MY DAUGHTER’S BIRTHDAY, MY MOTHER-IN-LAW SHOVED THE CAKE ASIDE, DECLARING, “SHE’S NOT WORTHY OF THIS.” My husband just stood there, saying nothing. My daughter looked like she was about to cry—but then she grinned, pulled out her tablet, and said, “Grandma, I made you a video.” What happened next left the room silent.... My mother-in-law, Dolores, stood over the trash can, holding my daughter's unicorn birthday cake like it was contaminated waste. The three layers of vanilla cake, which I