I had an Old English Sheepdog once and his hair got so matted one time we had to take him to the vet to get him sheared. When we got him back he looked about one fourth as large as he had before. The first thing he did when he got home was head for his dog house. He did not come back out of it for almost a week.
Thats how my dog was, she was so embarassed she slunk into the house like a snake.