You may remember Ollie, the Maine Coon who showed up last summer.
After I got a hold of his owner, we didn't hear from him again. While it was not my intention, I suspected she was keeping him in. I wasn't complaining that he was in my yard - I just wanted to make sure he was taken care of (otherwise, I was going to take him in). I was a little sad that he'd stopped visiting, but at least I knew he was cared for.
But then after month and months and months... guessed who showed up at the back door the other day!