the interviewer who show his bad mood, it is because this endless of interview without a hiring. interviewer handled to much of this tech-interview, he is sick of it. but because he is just an employee of square, he can't refuse to be an interviewer, but he absolutely don't like interview a lot of people continuously without a hiring. this company is not in mode of hiring, maybe if you are from apple, you will be considered seriously, otherwise your chance is very little.