Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @Budget  car rental you have made realize why I always use @nationalcares!!!!  What a #nightmare!!  #disgusted
This tweet contains emotions: 
anger, disgust, fear, sadness