Based on personal experience, the most toxic people I know have a larger than life personality, bulldoze those around them, and in front of people says all the right things and even plays victim as needed for the audience. Behind closed doors, a whole other story. Violent temper, cuts down those who are supposed to be close. They love to offer a hand to help… with strings attached. You will hear about that so called “help” for the rest of your life. Will make you feel that they are doing you a favor being in your life and what a privilege it is for you to have them.
I have cut people like this out of my life.