One of the joys of parenting is having the opportunity to mess with your children. I always wanted to be like Calvin’s dad (from Calvin & Hobbes) when my children were young, for example. It’s no wonder Calvin has such a unique perspective on reality when his dad explains that the sun is really only the size of a quarter and that we know how much weight bridges can take by driving progressively heavier trucks over them until they fall down. But that only lasts while they’re still gullible young. Entertaining Young Persons I’m discovering a...