No longer satisfied with your crinkled doctor's note, a growing number of corporations are hiring "Hooky Detectives." Private investigator Rick Raymond says he's staked out bowling alleys, pro football games, weddings and even funerals looking for people using sick days. From the article: "Such techniques have become permissible at a time when workers are more likely to play hooky. Kronos, a workforce productivity firm in Chelmsford, Mass., recently found that 57 percent of salaried employees take sick days when they're not sick — almost a 20 percent increase from statistics gathered between 2006 and 2008."