Task: Categorize the tweet's emotional expression, classifying 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 reflect the tweeter's state of mind.
Tweet: Worst thing that's happened to you when flying? I had a 16h delay, left my phone in the terminal, and wallet on the plane #nightmare
This tweet contains emotions: 
anger, disgust, fear, sadness