You realize that generally to be hit with "verbal abuse" you have to have documentation, correct?
That link also goes to civil harassment. Which also includes the last thing I quoted:
"The violence or threats seriously scare, annoy, or harass someone and there is no valid reason for it."
But here's another article about it:
http://smallbusiness.chron.com/worke...use-17507.html
"If an employee who has been verbally abused is not adequately aided at the company level, she may hire an attorney to take her case to court. Even without precise laws on the books that address the issue, OSHA standards seem to have enough bite to get the attention of courts. For example, the Indiana Supreme Court in 2008 awarded a nurse $325,000 for her claims of intentional infliction of emotional distress and assault after she was screamed at by a surgeon. Once you've heard a hint of abuse occurring within your business, you become part of the problem. You must either address it head on or be prepared to answer for your failure to do so."