"Someone who’s not yet an adult will tend to respond to a challenge from an adult in a way that acknowledges their dominance. If an adult says ‘that’s a stupid idea,’ a kid will either crawl away with his tail between his legs, or rebel. But rebelling presumes inferiority as much as submission. The adult response to ‘that’s a stupid idea,’ is simply to look the other person in the eye and say ‘Really? Why do you think so?’"