of felony battery and had his adjudication withheld because he completed probation, anger management, and restitution to the victim, makes a personal call on his personal cellphone, while on the job during work hours, and threatens a man that is dating his mother in law and even tells him that he is doing this during work hours and the owner, me, does not mind - which I definitely do - is my company legally exposed if the person that he threatened gets an attorney and tries to sue me for various liability, negligent hiring, assault, etc.?