They were impressed, purchased the animal, and went home (piously, of course). That night they had friends over. They were so proud of their new fundamentalist dog and his major skills, they called the dog and showed off a little. The friends were impressed, and asked whether the dog was able to do any of the usual dog tricks, as well. This stopped the couple cold, as they hadn't thought about 'normal' tricks.
"Well," they said, "let's try this out."
Once more they called out to the dog, and then clearly pronounced the command, "Heel!"
Quick as a wink, the dog jumped up, put his paw on the man's forehead, closed his eyes in concentration, and bowed his head.