Please analyze the tweet "@SkyUK what a joke!! Cut our internet off early 'by mistake' and then don't reinstate it when we no longer need an engineer 😡" and classify its emotional content. Choose from the following emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If no emotions are detected, respond with "neutral or no emotion".
anger, disgust, sadness