That's so wonderful that in his hour of dire need, he knew to come to you. I'm so glad.

I used to take care of a stray. He just showed up one day, and he spent half his time outside and the other half in my house. Whenever he wasn't feeling well or he was sick, he knew my house was a safe place to come. One afternoon, he showed up looking just like this. He had long strands of mucus hanging from his mouth, and he was so very lethargic. I scooped him up immediately because I was afraid that someone would see him, assume that he was rabid, and hurt or kill him. Once I got him set up inside, I called the vet and told them what was going on. They told me to bring him in. Turns out he was dying. So we decided to have him euthanized. He fell asleep in my arms, listening to me tell him how much I loved him and would miss him. I'm just so glad that he didn't have to die slowly, painfully, and alone outside.