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: @Brennan_PB Backs up what I always thought ... yer all as mad as each other 😂
This tweet contains emotions: 
anger, disgust, joy