Spend 40-plus hours a week with the same people and sooner or later you're bound to have some friction. But the term friction doesn't begin to cover what goes on in some workplaces. It's a Jungle Out There According to the Bureau of Labor Statistics, more than a million acts of workplace violence are reported each year. Most injuries sustained were from incidents involved punching, hitting, kicking and biting. A number of altercations involved superiors and subordinates. A Maxim magazine survey found that 7 percent of its mostly male readers have had a physically violent encounter with their boss. Seventy-four...