I let my old girl go on Monday, 16 1/2 years of unwavering loyalty, my wife and I wept like children. We've had dozens of messages from clients, some in tears as they knew her so well. It's the most heart-rending decision you will ever make. We had it done at home in a calm and peaceful manner after her spending her last day at work with us, she still greeted every client enthusiastically and vociferously. She would never have improved, but we refused to see her deteriorate and suffer. Don't keep them for your own sake. Of all the dogs I've done this for, this was the hardest as she'd been my constant companion, travelled across Europe several times and worked tirelessly for me and many clients.
Dig deep, deep breath, chest out and do the right thing. It is the last kindness you can give and the ultimate act of love and friendship. Now you've set me off......
Best wishes
Paul