My parents moved to American Samoa when I was three or four years old. My dad was principal of a high school there. It was idyllic for a kid. I had a whole island for a backyard. I lived there until I was eight years old and we moved to Santa Barbara.
Making use of human weaknesses in intelligence work is a logical matter. It keeps coming up and of course you try to look at all the aspects that interest you in a human being.