Emma is cute! I had a dog that did this! I lived down in the desert and she did this to cool off. She had a place she claimed and I let her have it to spare the rest of the yard. When it got really hot I would fill up her hole with water before going to work. By the time she needed it the water would soak in and dry up just enough to not be muddy! I think she appreciated because she would be there when I came home from work!