Mother Dearest?

The mind-poisoner: adept at poisoning peoples' minds by manipulating their perceptions of others, especially against the current target.

The feigner: when called to account and outwitted, the person instinctively uses the denial - counterattack - feigning victimhood strategy to manipulate everyone present, especially bystanders and those in authority. The most effective method of feigning victimhood is to burst into tears, for most people's instinct is to feel sorry for them, to put their arm round them or offer them a tissue. There's little more plausible than real tears, although as actresses know, it's possible to turn these on at will. Feigners are adept at using crocodile tears. From years of practice, attention-seekers often give an Oscar-winning performance in this respect. Feigning victimhood is a favourite tactic of bullies and harassers to evade accountability and sanction. When accused of bullying and harassment, the person immediately turns on the water works and claims they are the one being bullied or harassed - even though there's been no prior mention of being bullied or harassed. It's the fact that this claim appears only after and in response to having been called to account that is revealing. Mature adults do not burst into tears when held accountable for their actions. (No, not unless you are my mother, that is)