Amazon Software Development Engineer interview questions

The first round was with 2 guys who asked algorithm questions. In the middle, there were chous as someone else wanted the room. We were kicked out and then reinstated and finally timed out. The 2nd round was 1-1 with a lady who asked mostly questions on my current project. The 3rd round was again with a guy who asked a mix of algorithm, data structure, code review and project management questions. After that I called the recruiter who said my interview was completed. He offered me a lunch packet. I gladly accepted and drove back to my work. When I opened the lunch packet, it had an expired pack of chips, expired 3 years ago. Are you kidding!! Amazon trying to feed interview candidate with chips that expired 3 years ago? I knew I would never work for them even if they double my salary.