A Brief Interview With Mother Murphy, HimselfQ. How did you come up with the idea for Mother Murphy's Law?Mother Murphy: I spend a lot of time with my children, and it seems that something is always going wrong. I used to think I was a klutzy daddy...then it dawned on me: 1. When I was a kid, everything my parents did was wrong.2. Now that I'm a parent, everything I do is wrong.Q. What does Mother Murphy's Law explain?Mother Murphy: The book is pretty much a catalog of things that can go wrong as you have and raise kids. For example: If most of the baby shower gifts you receive are blue, your baby will be a girl. Your baby's diaper is wet moments after you've changed her into a clean one...and leakproof diapers aren't. your toddler knocks on your bedroom door the moment you're about to have sex...or barges in unannounced at the peak of passion. Any food that's good for your child is yukky...and any food that's loaded with sugar, salt and fat is yummy. Anything you say or do when you're with your teenager in public will embarrass him.