"I want to get one of those dogs," she said earnestly. "I want to get one for the apartment. They're nice to have--a dog."
This reminds me of my friend that constantly likes to impulse buy many things. Whenever I go to the store with him, he always has to buy a pack of gum before he leaves. This is like Myrtle because she just sees some dogs and says she wants to buy one without really thinking.