Last month, trainer Mary Pattershall picked up her stall allocation from Parx Racing, where she said she's been stabled for decades, and got a nasty surprise. She was given zero stalls and was told she must have her "horses and property off Parx grounds" by the end of the day Thursday April 23. What's more, the letter-signed by David Osojnak, Parx director of racing-gave no explanation as to why she would have to leave. Nor, Pattershall said, has she been given any such explanation since, although she suspects it might...