However, do you know how to recognize them? There is a rule of three to help you.
Some people are simply so bad that you don’t want to have them in your life.
However, if you mark everyone who has at least once done you wrong as a ‘toxic person’, you will very quickly be left without any friends.
It is, therefore, best to use the ‘rule of three’ to identify when bad behavior is simply part of someone's life. If you are lied to or betrayed once, maybe it was just bad judgment. But if it happens regularly, it's a pattern that won’t change.
Harvard professor, Marta Staut, explains the essence of the ‘rule of three:
‘One lie, one unfulfilled promise or a forgotten responsibility can be the result of a misunderstanding. If this happens twice, then it is a serious mistake. But three lies clearly tell you are dealing with a liar, and deception is the key thing about that person's relationship with you’.
Of course, there are certain situations where people can make several mistakes due to the affect, but it is always good to pay attention to patterns in their behavior outside those circumstances, rather than focus on their justification.