What is it with Robert F. Kennedy Jr. and roadkill? The guy can’t seem to get enough of the stuff! A new biography called RFK Jr.: The Fall and Rise, by Isabel Vincent, includes a journal entry describing an instance where the health secretary left his kids in the car so he could cut the sexual organs off a dead raccoon on the side of the road, TMZ reported Wednesday.  “I was standing in front of my parked car on I-684 cutting the penis out of a road killed raccoon, thinking about how weird