I beg to differ. I recall listening to Don Cherry when he said that when hockey players never wore helmets or mouth guards everyone kept their sticks down and the puck on the ice because they knew that a stick or puck in the face or head was dangerous. Now that everyone wears helmets and is biting down on a mouth guard, the sticks and pucks are in the air, and people are getting seriously injured by high sticks and flying pucks.

We see exactly the same thing outside the hockey arena. When there was an electrical blackout in New York City about 10 years ago and the subways stopped running, everyone peacefully filed out of the subway system and walked home after work and there was no crime in New York City during that black out. That's because everyone realized that this was a potentially dangerous situation that could turn into anarchy and everyone had to help everyone else out to prevent that from happening. So, people restrained themselves to ensure the city didn't turn into a crime spree zone during the black out.

What I'm saying is that if people are aware of a common danger that threatens everyone, they will co-operate to protect themselves and each other from that danger. If people know that ordinary air is more prone to seep out of their tires, they'll be more diligent about monitoring the air pressure in their tires, just as hockey players that aren't wearing helmets co-operate in keeping their sticks and pucks down for the benefit of everyone.

It's the psychology of the situation that dictates that people that are aware of a potential problem will monitor that situation more diligently than if they are less concerned about that problem.