Once upon a time there were two dogs that each set out on their own journey with their humans in the humans' cars. These dogs did not know each other nor did their humans. What was true about each of them was this: they loved their humans, they loved to go for journeys in their human's car, they loved hanging their head out of the car window to "ride the breeze."
Normally when they encountered a stoplight, they had nothing much to look at that was interesting, but today that was different. At the stoplight, there was another dog in a human's car staring right back at them. Almost simultaneously both humans called out "Chance, get down from there!"
It truly was a Chance encounter.