True sadists enjoy inflicting pain. The fact that their victim is enslaved to their whim and fancies gives them a great high. Psychologists say that while sadism is a very commonly observed disorder, unfortunately there hasn’t been much research on the subject. "We don’t know facts like the incidence of the disorder or if is it more prevalent in certain age groups," says Dr Madhumati Singh, psychologist with NGO Samvedna. Though one thing is sure that it is not caused by any chemical imbalance in the body but due to factors in the immediate environment of the person. The typical characteristics of such a person would be suffering from a number of complexes, inability to trust anyone, tendency to blame others and a string of unsuccessful relationships. And it’s surprising to see how commonly this streak is found in any given set of people. According to Anand, people who criticise a lot, speak out their minds without considering the sensitivities of people around him…all suffer from certain degrees of sadism. According to experts, critics and journalists are two popular professions that thrive on their sadistic approach. "Critics love to rip apart works that have taken people year’s to accomplish, it stems from the critic’s own inferiority complex and criticising other people — justifiably or unjustifiably — gives a them a false sense of power that eventually gives a vent to their own anxieties," says Anand.