Sir — This refers to the editorial, “Kejriwal’s callous remark” (January 26). Delhi Chief Minister Arvind Kejriwal has once again referred to the Prime Minister as a “psychopath”, which nobody, not even his bitterest critics, barring West Bengal Chief Minister Mamata Banerjee, has ever dared to do. In a democratic country like India, we enjoy right to freedom of speech, but there is an etiquette’ infringement threshold, which needs to be maintained. And Kejriwal has failed to do so. Hence, people have stopped taking him at face value.