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