Warning New parents are likely to experience: Scorekeeping--An exceedingly complex, often relentless, tit-for-tat war waged by husbands and wives over the division of parenting responsibilities and domestic chores. The Ten O'Clock Shoulder Tap--Considered by many men to be a form of foreplay. A paw on a wife's shoulder is how some men indicate their desire for sex. The Tap is rarely accompanied by a term of endearment or any other...