I am looking for a children’s book that I used to read in the late 80s/early 90s at my public library in Merrick, NY.  It was about a family of dogs. I believe the main character is a male dog named Sammie or Sammy.  His mother dog is feeling ill, so his brother dog takes care of feeding him breakfast and getting him off to school. However, he is so used to the way his mother does everything that, when his brother tries to do things for him, he often replies that “Mommy doesn’t do it like that.”