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: @len_snart gives a frustrated growl, before stepping closer and putting his gun through the barrier. No alarms and nothing happened. He-
This tweet contains emotions: 
anger, disgust