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: Asian Tiger #Mosquitoes are so relentless. More aggressive than the kind I dealt w/as a kid.
This tweet contains emotions: 
anger