Circumcision is not a lunch topic.Check under your nails for doo-doo.When you go away on business and you're really sorry your wife is stuck at home with all the midnight feedings, try not to smile or get caught high-fiving the dog.Author of the syndicated humor column Family Man , Ken Swarner lets readers into the world of parents and kids, explains the enormous differences between sons and daughters, and provides assorted tips on operating a homework jail, understanding the rules of T-ball, and coping with uncooperative breast pumps (Ken's wife helped with that one).