My sister rescued a kitten she saw get hit by a car. He has a broken leg and jaw. I would say he is around 4 or 5 months old. He is not eating. He hisses when we go near him. He has a vet appoitment tomorrow, but if I am not able to handle him not sure what good that will do. I'm not sure I will be able to medicate him or force feed him. He has started to meow a bit when we go in the room, but still hisses. Any advice would be much appreciated!