Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: @GNRailUK There's gonna be street parties when you lot leave. Spontaneous rejoicing. Clowns.
This tweet contains emotions: 
disgust, joy, optimism