Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: People were always afraid that stodgy squares would kill rock and roll, but the only legitimate threat was ever child choruses.
This tweet contains emotions: 
anger, disgust, fear