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: @LidlUK Just bought a pack of two medallion beef steaks. Got home. Cooked them. One steak is 100% pork. I had one unhappy mother. 🐮🐷
This tweet contains emotions: 
anger, sadness