Agreed with the other comments so far, a terminally huge red flag.<p>Now, if the question was of this sort, suitably tailored for the job, it might be OK:<p>"If the production database gets wedged, would you be willing to work overnight to get it fixed?"<p>(Been there, done that (my boss made a programming goof, had to do a point in time recovery), company made sure we were fed and got home safely without paying extra.)<p>Hmmm, it strikes me that even in this form the question is worthless for interviewing, unless you have a remarkable talent for detecting lies, in that anyone who's going to continue the process, or not look for another job ASAP if they're desperate right now is obviously going to answer "Yes".