I never make the choice lightly. I actually swore I'd never do it, but my very first dog suffered from cancer. She had many surgeries and was 14 when it reappeared again. We had her scheduled for surgery again, but the day of it, we all looked in her eyes, and I swear to you, she was saying, "I'll do this again if you want, but I'd really rather you let me go." I can't describe it, but she was tired of fighting. She'd fought so hard for years and had lived a really good life. She was just ready to go, so we let her. I guess I look in their eyes more than anything else.
All the dogs i ever knew where always more then just a dog to me,Always will be.
I've only had to end it once,(it was a horse i grew up with that got cancer) i knew it was time to say goodbye and so did he,i told him id see him again. Everybody has their way of knowing when its time,but its never easy and sometime you dont really get over it.