Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: wonder if at any point #BobMarley ever actually became #afraid of just how #high he'd gotten. :o #420
This tweet contains emotions: 
fear