The only way to change a workplace bully'a attitude it to fire him or her.  Why should anyone in the workplace have to duck, hide, or try to  figure out how to tame a bully?  I assume the workplace bully didn't demonstrate his or her bully mentality during their original interview for their job.  Bullies are cunning and are experts at manipulation. 

I met only one workplace bully in my work history, and I stood up to the bully.  I dared him to fire me and informed him that he'd have to explain why he fired an employee that had a five-year employment history of a perfect attendance and hundreds of hours of overtime.  The bully lost his job five months later in a company downsizing.  Employees got the last laugh.