Life is a jungle. One way to come out on top is to recognize the predators and adjust your defence in accordance to their style of attack. It’s easy enough to handle Poisonous Personalities when they’re new people you meet or acquaintances. You can elect to disassociate yourself from them with little consequence. But what if they’re part of your family? What if they’re a member of a close knit group of friends you’ve had your entire life?