Task: Examine the tweet to determine its emotional content, assigning it to 'neutral or no emotion' or one or more of the listed emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best describe the tweeter's feelings.
Tweet: @bbctennis why on earth do you keep changing the channels? There is no logic to it and makes recording impossible!!!!  #frustrated #angry
This tweet contains emotions: 