Thanks - I started him on one a day tonight - was the worst night for pilling him though, took about 7 goes and two tablets, so hopefully the operation is an option. He hasn't been a good boy all day really - my sis brought her 12wo JRT pup, we let him see Sam first (due to the no teeth), and I thought Sam would be the best, and he went for the pup - and we did it outside so he wouldnt see it as in his house. Poor pup was very scared. He also refused to come in all afternoon, so I had to leave him out while i do my errands, which I dont like - but my neighbour kept an eye on him.
When he was on my knee last night, you could tell he had lost weight on his back end, so he is currently on extra rations.