Rude HR as first contact - undermined every single role and project I've worked on, despite herself having almost no technological background. Next was technical - had a relatively enjoyable interview deep diving into a project but could also tell that one of the team members was over confident in his beliefs. Was asked a question about an AI model. It was the exact question I had asked my professor previously - I answered it and was told I was wrong. Surprised, I asked what he thought the correct answer was but he refused to reply. After the interview, doubting myself, I tore through papers to confirm the correct answer and I (and my professor) was indeed correct.