Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: Pro Tip: Go back to work when your kid reaches 20 mos old.  Stay home any longer, and you'll be absolutely miserable with the #tantrums.
This tweet contains emotions: 
anger, disgust