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: How come quiet well behaved cats and dogs have to ride on a plane in a tiny bag while screaming small humans roam free? #outrage #teampet
This tweet contains emotions: 
anger, disgust