I was led into the building through security by 2 interviewers and later the CEO joined the interview as well. Even though the job offered noted that training was to be provided, the CEO was rather direct with his questions demanding "technical answers" and was extremely rude and emotionally compromised when he didn't get what he wanted. He also remarked "Have fun at your cleaning job" when I left the building. He's a very good example of how CEOs shouldn't act and why they shouldn't be present at interviews at all!