Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @stephenfhayes Mustard gas = hostile work environment, not #terrorism; call #OSHA not #military
This tweet contains emotions: 
anger, fear