Jake has been back to the vet today (following the car incident in the rant thread). The vet suspects his hip may be broken, and is doing an x-ray today. Will ring us back later today with the results, but will only give a 50/50 chance at this point for fixing it. I feel sick to my stomach at the idea of losing him.
EDIT: He has a badly dislocated hip. Vet has said he could pop it back in, but it would only come out again, so he's having surgery tomorrow (an arthroplasty), and with any luck we should have him back tomorrow evening. He's keeping him topped up with ketamine so he's not in any pain, poor little bugger. He should pull through and be just fine, though (albeit with a limp).
EDIT: He came through surgery just fine, and we get to pick up up this evening!