Bugs and Suggestions

public class SysAdmin: Employee
{
   public override void DoWork(IWorkItem item){
     if (item.User.Type == UserType.NoLearn){
       throw new NoIWillNotFixYourComputerException(new Luser(item.User), "STOP GIVING ME THE SAME ISSUE EVERY 30 SECONDS!!!");
     }else{
       base.DoWork(item);
     }

   }
}