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: I just #revenge killed a red ant for biting my son's finger. #iammommabearhearmeroar 🔪🐜🗡
This tweet contains emotions: 