Amazon Packaging Engineer interview questions

Emails from HR, then two phone conversations that were not really an interviews, followed by an invitation to fly out to Seattle. All day in person interview with seven people with rounds of specific questions targeting the Amazon principles, where each person seemingly played a different role. Starting with a well composed person, the next hadn't read the resume (or pretended), then a relatively hostile person, then a totally over the top friendly one, followed by a laid back person and finally a very intense stick to the facts type. It felt all choreographed, and all of them asked their series of questions leaving little or no time for my questions. Then two days later references were requested, and the following day there was a voice saying "no thanks." They hadn't call my references.