Well, for those who haven't seen this via t__m__i on Facebook, Harvey didn't make it. We took him to Port Meadow but he wasn't really interested in a walk, or anything. We arranged an emergency vet appointment, the vet did some blood tests (they have some sort of machine now that can do some tests) and said that his liver reading was the worst she had seen (she is quite young). It was a 'well we can do some stuff which won't work' kind of thing, so we decided it was best to let him go. As I may have said he had his annual check-up a not that long ago, he had certainly lost weight by that point. So we have lost both Harvey and Alex in a year. Hey ho.