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: “The immense importance of football is sometimes scary. When you don’t win you are responsible for so many unhappy people.” - Arsene Wenger
This tweet contains emotions: 
pessimism, sadness