I had one that was similar to this guys, got to the CEO interview and until that moment I was still excited to be there. They flat-out asked me "Here at ___ we know we're making the world a better place - and because of that we're willing to make ___ our number one priority in our lives. This is a hard question, are you willing to do the same?"

I was taken aback for a second. I then answered in the only way I could. "I see what you are doing and fully appreciate it. If I'm hired here ___ will be one of the most important things in my life. Whenever I'm working I will be 100% dedicated to the work, I've never shy'ed away from it. I'll work nights and weekends when needed, sometimes those are needed. However you're asking if it will be the most important thing in my life? My answer is no. It will be one of the most important things in my life, but my family and spouse is the my most important thing in my life."

No shit, they ended the interview there, and I got a canned rejection email within 30 minutes. I've never been so angry at the audacity of an interview question like that. Who the fuck do you think you are demanding that you make yourself more important than my spouse?