Examine the tweet "Even death is unreliable. Instead of zero it may be some ghastly hallucination, such as the square root of minus one.  Samuel Beckett" and determine which of these emotions are present: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If there are no identifiable emotions, reply with "neutral or no emotion".
disgust, fear, pessimism, sadness