Task: Evaluate the tweet for emotional cues 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 indicate the tweeter's state of mind.
Tweet: @theurbanologist the tunnels! I shudder to think of the grimy tweets...
This tweet contains emotions: 
disgust, fear, pessimism, sadness