Well it seems like the cat's had the last laugh! Apparently he's not moved much for four days but they've been nursing him, feeding carefully and keeping him warm on a blanket for four days. He had already been seen by a vet who told them to keep a close eye on it.
Concerned, they booked him in for sedation and xray at 8.30 this morning as soon as the vet opened.
Naturally the cat hid and appears to have made a miracle recovery! They are still taking him in as soon as they can catch him.
I know all this is true, my friend is many things but no liar. I actually think I may've been over reacting and he was just being a bloke yesterday acting all nonchelant.
Cat's happy, I'm happy and I shall continue the work I do with my friend!