Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
Tweet: Just watching #Phoenix video for the first time. Holy fuck, this guy is seriously deranged, unhinged. Why is everyone not #terrified?
This tweet contains emotions: 
anticipation, disgust, fear, pessimism