Some people believe that basic curiosity is the reason that dogs stick their heads out of car windows. Most dogs aren't tall enough to see out of the window from the seat. So, they stick their head out for a better look and to enjoy a cool breeze. Yet these dogs run away in fear when you blow even softly into their ears. It's the sound of the blowing that actually bothers a canine's ears.
Veterinarians suggest that neither scenario is good for dogs.
Frequent drives around town with their heads sticking out the window can lead to ear infections. This may seem odd, especially since popcorn isn't wet. Inside each kernel there are drops of water so small that you can't see them. When the corn gets hot, the water turns to steam, the steam bursts out leaving a fluffy pie of white corn. No matter what color the cloud, it is made up of tiny drops of water that float.