Do you think it is sometimes ok to pick on and bully someone?

Do you think it is ok if the person is insecure or has low self esteem, doesn't fight back, or is a coward or a jerk, or a skank or hoe? Or if the person is weaker than you so you can? Some of you out there must agree that it is ok to bully and pick on some guys or girls, because it happens in every school everywhere all the time.