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: @lebara - worst possible decision I could have made when arriving in the UK. Shocking service. Poor coverage.
This tweet contains emotions: 
anger, disgust, sadness