My springer spaniel is 14, she's a beautiful dog, got her as a rescue at 7 as she'd reached the end of her working life, and her owner either shot her or rehomed her. She's had a fabulous life with us, but she's struggling at the moment. She's never shown when she's in pain, she's just got on with it. She's now losing her legs, double incontinent, but, she's still going for walks and loves her cuddles. I'm worried that I'm keeping her for my sake and she may be ready to go. How do you know when it's time to let them go?