Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: @FitnessFirstAU something needs to be done about people hogging machines - nobody can use 3 machines at one time!  #notfair #whypay
This tweet contains emotions: 
anger, disgust, sadness