Maybe there's a two-year gap in your resume that you hope no one will notice. Face up to your fears. Prepare for your interview by coming up with plausible, positive answers to questions like these. Good bosses and experienced interviewers have a way of sensing the weak points in any presentation, so presume that you'll need answers to all of your worst-nightmare questions. But don't ask it too soon.
Many people do, and they often talk themselves out of exploring a potentially promising opportunity.
Maybe they don't want to commute all the way to that company, or maybe they assume the compensation or career path won't be attractive enough. The point of a job interview is to help each party learn more about the other. Maybe, during the interview, you'll discover something that will impress you so much that commuting a little longer, or changing jobs for the same salary becomes much less of a concern. And the career you save may be your own.