Classify the emotions found in the tweet "@freemanstanzan2 you're a cowan... that means you're a slimebag. I wouldn't trust you as far as I could throw you. #arsehole @StuartHarker1". Select from the following: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If the tweet is emotionless, reply "neutral or no emotion".