Chain of command is always the best course of action. Unless the problem starts at the top. Then my only question would be can the Union......Providing that you have one, help you. Alot of complaints are opinion based rather than fact based. The burdon of prove is always on the person (s) filing the complaint. Documentation and others that are willing to go on record is also helpful..... Pic your battles.......Ask yourself will this matter in 5-10 or 20 years....... If the answer is yes than you already know what to do.........Being willing to pay the price for the ride is the next question. Goodluck.........I know what your going through.....