Don’t talk to strangers. It’s one of the first things we’re taught as children. It is a common knowledge not to put any trust in some stranger, possibly to protect us from getting hurt. But is it actually a good advice? Don’t you think it’s quite unfair? Everyone we ever knew was once a stranger, be it our best friends, our other half, our colleagues, even our house maid. If we hadn’t given them a chance, if we hadn’t trust them, they could have never been such people to us. But we did. Then why are we always suspicious of strangers?