Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: Asian Tiger #Mosquitoes are so relentless. More aggressive than the kind I dealt w/as a kid.
This tweet contains emotions: 
anger