I came home from work and found my disabled daughter crawling on the kitchen floor, after my mother-in-law sold her wheelchair and told everyone she was faking.

By the time I turned toward the front door, the porch light was already on. It was early winter in Columbus, Ohio, and it was getting dark before my shift at the billing office was over. I remember thinking only about dinner, homework, and whether my ten-year-old daughter, Lily, had taken her nighttime medication on time.

My mother-in-law, Sharon Mercer, had been living with us for three weeks.