I cannot count the number of times I’d entered one of their houses only to hear someone say, Oh, I thought you were at your dad’s/mom’s today. I also cannot count how many parent-teacher conferences and dentist appointments were missed because they each assumed the other was taking me. Or the times I crashed at my grandma’s without telling either of them and no one ever called to see where I was. I was so good that my parents didn’t have to worry about me. So they didn’t. At all.