I agree with you to the fullest. This world is filled with people who are ready to play on people's intelligence, make use of people's softness and trust against them.
It is each and everyone's responsibility to protect themselves from the harm people are willing to give, and the only way to do that is to think ahead of time, study people, and make full use of ones instinct before making dealings with people
It is exactly like that. Thank you for your comment.