I've only worked at startups and never found that anyone asked me to work one more hour than I wanted to. I have always been considered a top or the top contributor on every team I've been on so no one really has thought to hassle me I guess.

I have avoided companies where the founders worked too many hours for my taste. I think it's unhealthy and I have two daughters who need me around more than the company does. I just don't want or need the pressure to stay late.