A farmer called my veterinary office and asked me to make a house call. Because the road was closed, he parked his ancient pickup in a field for me to drive the rest of the way. But once behind the wheel, I realized the brakes didn't work. The truck sped toward the stable, across the farmyard, into the barn, and embedded itself in a gigantic haystack. Sweating, I climbed out and apologized. "Don't worry," the farmer said to me. "That's how I stop the car too."