Excellent, exactly what I was thinking! John is waking up to a "power poop" message on his car, his cows are acting strangely because they know the truth and have organized, also these cows possibly may have picked up some magic from Clarabelle making them a little more difficult to handle. Who are you going to blame for the 4 missing cows? John seems like a reasonable guy who doesn't believe in magic and will look for ways to explain away all the weirdness coming his way with more logical explanations.
Hey, who knows, maybe we will have a whole book once we are done!