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: My oldest cat pisses me off. She's always been weary of Kennen (senile kinda), but recently shes been sweet. Until she attacked and bit him.
This tweet contains emotions: 
anger, fear