My sisters dog holds grudges. Whenever she goes on vacation she takes him to a kennel type of place but it's just like a doggie hotel! They have meal time, play time, nap time, etc. It is too funny. Now her dog, from what I have heard, has a good time but is always eager to come home as well. He initially is excited to see her again until they get home and he snubs her for a day or two. But things always go back to normal.