A 3-month-old German shepherd puppy is being blamed for driving a family car into a Massachusetts pond. The dog's owner, John Costello, said he took the dog for a walk around Bolivar Pond in Canton on Sunday, then got into the car and started it in preparation for the ride home. That's when the puppy jumped in with him. "The dog just jumped into the car and hit the gear shift ... when she slammed it into drive she fell on top of the gas pedal,"