Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: With a very tired body and mind and sparkling teeth I say to all my followers, good night and if there is an apocalypse; good luck. #aspie
This tweet contains emotions: 
joy