Thanks for advice, people. When I said 'my friends will disapprove', I was projecting my own self-criticism, which I've done before. Sorry about that. My mum phoned, and gave me permission to do whatever seemed best. I took the cat to the vets with intention to put it to sleep, and then couldn't go through with it, and I've come back with a live cat and a load of needles and insulin. I am softer hearted headed than I thought. To celebrate the bloody animal pissed on my new coat. Wretch.