Task: Analyze the tweet's emotional connotations and classify 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 best portray the tweeter's mental state.
Tweet: @Virgin_TrainsEC I feel for the conductor tonight, he's obviously taken grief over the last few weeks, he sounds weary of apologising!
This tweet contains emotions: 
sadness