Her words make me chuckle. When I notice her scowl, I hasten to add, “Sorry—it’s not about you. I just remembered that when we were around thirteen, my sister and I used to have this really weird caregiver, and whenever we had a fight he would force us to cut each other’s toenails.” “What?” “I think he got it from a TV show. For each nail, we had to say something nice about each other. And the habit kind of stuck, and it became the way we fixed all our fights?”