Classify the emotions found in the tweet "Didn't know the @ChickfilA cow day thing ended at 7:30 so showed up 30 min late looking like a cow with no sandwich #sadness 😅😅😅". Select from the following: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If the tweet is emotionless, reply "neutral or no emotion".