First phone interview was a bliss. Easy going senior technician, some questions were difficult,some not. However interviewer gave a very positive vibe even when I wasnt able to answer. All in all very good feeling afterwards. Second phone interview was completely opposite. Interviewer FO had echo on the line, sounded like he was ringing me from the colocation room. Asked politely twice to reconnect or improve connection. Did not help. Within first 5 minutes I had an impression that interviewer has other more important things to do, rather than talk to me, no answers were accepted unless it was word by word from a book. Almost like he did not know himself, only QA in front of him. "Deep diving" is one of the slogans for amazon. Unfortunately he seemed to understand it in his own perverted way. There were subjects that I had no knowledge about, which I notified my interviewer, however he carried on asking questions within the same subject. When I asked why are we going through with this, when I said I'm not familiar with this. He claimed deep diving *facepalm*. He ended up raising his voice and getting very impatient. I do not tolerate such behaviour and asked him to calm down and that there is no reason to get upset. Explained my answers etc. He ended interview after that, simply said that will be all. I was left with mixed emotions such as confusion and shock. People like that should not be in a hiring process.