It is happy to know that my cat, Coco had familiarize with his environment. Now we do not need to worry if he got loose and won't return. He will just roamed around the neighborhood and occasionally fight with other alley cats. I am not sure why, but he is very agitated when he saw any black cat. Anyway, babe just informed me that both the dogs in her house are now familiarized with Coco too. In other words, they didn't bark or chase after him when they saw him coming back.
Previously, Bobo would bark non stop at Coco when he saw him in sight. As Bobo doesn't like the sight of any cats at all. Le Le on the other hand is still young and active, so he like to jump around and play with Coco. But we are afraid that he will hurt Coco unintentionally as he is stronger. But one fine day, when babe was coming back from work as usual, she saw Coco lying on the car porch while both Bobo and Le Le roaming around without barking or chasing Coco around. Who said that old dogs can't learn new trick. They just need time. So it's one less issue to worry bout my cat and he can stretch his four legs as much as he want now.