This mystery started a few years ago on the Left Coast and migrated over to the East coast. I've always wondered if Pfizer has anything to do with it since they are and have been for many years involved with veterinarians, specifically horse drugs & vitamins. Meh, probably just another coincidence. 
Quote:The series, “Veterinarians On Call,” captures the pride and responsibility of veterinarians in their day-to-day work on U.S. farms and ranches, working with their client livestock farmers and other professionals to raise pork, beef and dairy animals. Presented by Pfizer Animal Health, the show premiered in September on the Veterinarians On Call YouTube channel.
Creators of the series hope the consumers of America’s meat products will feel more connected to the families and farms that work professionally to raise food animals. One of the featured veterinarians in the series is Dr. Peter Ostrum, recognized by movie fans as Charlie from the classic 1971 film “Willy Wonka & The Chocolate Factory.” Today, Dr. Ostrum has transitioned from actor to milkman and is practicing as a dairy cow veterinarian in Lowville, N.Y.
New reality series: "Veterinarians On Call" (Oct 2011)
"It is hard to imagine a more stupid or more dangerous way of making decisions than by putting those decisions in the hands of people who pay no price for being wrong." – Thomas Sowell