Interviewer showed up to the call 10 minutes late and asked me you introduce myself - midway through the introduction he get cut me off “saying we need to get started”. Rushed me through system design interview by asking comical and trivial question. It was very clear that he was not happy to be there with me. Ended the call 5 minutes early telling me “ I don’t want to be late to my next call.” Very classless and unprofessional conduct to be honest. Didn’t give much of a reason as to why I failed the interview few days late - kept it very corporate - this seems like a very strange shop, please don’t waste your time with them.