“In addition to watching out for deliberate evil, some people are just naturally awful. If you haven’t already, you’ll probably encounter a master manipulator who can plant ideas in your mind without you really ever realizing it. They’ll find ways to twist a situation so it’s always your fault, convince you to do what they want by using pity, and never let the attention in the room shift away from them. Sometimes you’ll even know you’re being manipulated and but you’d rather give the person what they want rather than exerting the energy necessary to fight them. If you can recognize these tactics, you can try to shut them down or just get as far away as possible. People who don’t know they’re evil because the behavior comes naturally are best avoided at all costs—but you can only do that if you can identify how they act.”
How To Use Your Dark Side For Good – lifehacker