Making the decision to have a pet put sleep is heartbreaking, there comes a point when the quality of life of the pet is so low it is the kindest option, Si should be supporting you not causing you more anguish.

FYI I certainly don't regard you as a pessimist, you get out there and do stuff. when you could no longer do cross stitch with both hands you found a way round it, Paula you're a strong fighter.