If you make a list of the world's top ten most challenging jobs, chances are that being a teacher will not make the cut. But think about the daunting task millions of educators face each day as they try to mold a group of often surly, unruly kids into intelligent, well-rounded individuals. That surely has to be the toughest job in the world, especially given that there is no promotion or bonus awaiting them even if they are wildly successful!