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: I am often disturbed by what some people find appropriate or acceptable. It's not funny nor cute that adults find this stuff humorous. #sad
This tweet contains emotions: 
disgust, pessimism, sadness