I think the answer would be purpose. I'm not sure though.
Answer: A young man planned a clever getaway from the department store.
The central idea that both "The Quinceanera" and "The Smithville Gazette: Neighborhood Thief Strickes Again" share is the fact that in both stories, a young man planned a clever getaway from the department store. Both stories feature as the main character a sales person, and they tell us the stories of their lives. However, they differ in the jewelry store setting.
Wiesel thought that Aushwitz was better that Birkenau. Hope this helps!
He feels sad and moody for disobeying Atticus