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: Just waved daughter and her wee friend off to school, walking by themselves #sob #terrifying!
This tweet contains emotions: 
fear, sadness