Chris Myers is thankful that he grew up next to a parking lot. His favorite childhood prank is serving him well in dealing with annoying people. Whenever someone parks in a space reserved for the disabled, he leaves a note on the windshield that says, "I'm so sorry I hit your car. It doesn't look like the damage was severe." Then he signs a name but he makes it just messy enough to be illegible. "It works best if the person owns a fancy car," says...