One time when hubby and I were first married, we had an elderly inside/outside cat. We knew she was failing, but were not sure how long she had. One day we went away for the day, and when we came home we opened our garage door. (our cat was able to get in through our walk-in door that was left open for her) When we opened the big door, there she was laying on her side in the middle of the garage. She didn't even turn her ears back. I thought she was gone. But I went to her, and placed her on the other car that was in the garage. Hubby stayed with her while I called the Vet. I didn't even make it to the front door, and Hubby said she was gone. She had waited to say goodbye to us. They just know!!