Most employees want to do a good job for the employer they work for, and do not deserve any kind of bullying and harassment. If an employee is not meeting expectations consistently then there are other ways to deal with that situation rather than bullying or harassment.
Some supervisors and managers believe that yelling and shouting at employees is the only way to get them to get their work done. That in fact is a form of intimidation and should not be acceptable. Most employees want to do a good job, but if at times their performance falls below the acceptable level, then it is important for a supervisor/manager to discuss the performance with the employee concerned and discuss ways to help the employee improve his or her performance. All of this needs to be done through performance feedback, development planning, training, follow through, etc. None of this needs to be done in a harassing manner.
It is important for supervisors and managers to keep in mind that employees do their best when they are happy at their work. A manager’s responsibility is to make sure that the employees perform their duties well, while maintaining a positive and rewarding environment. The main point is that all employees typically understand that they need to meet performance expectations and that there may be consequences if performance is consistently below expectations, but there should be no room for bullying and harassment by the supervisor/manager.