@goober: When I say “unsuitable,” I mean something like this:
Say there was a pretty good computer programmer out of work. She has placed her resumé on all the good job sites and looks for jobs online and in person for ten hours daily. After a few months, she’s still coming up dry. With unemployment pay kicking in, she still has a little breathing room to find another job that fits her skills and pays enough to feed her family.
On the other hand, what if she takes the first minimum wage job offered to her, like frying burgers or picking litter. Those are exhausting jobs, and on top of an 8–10 hour day, she still has to come home and do housework and cook. Then she collapses from the day, too tired to look for programming jobs for more than an hour or two. Or, she finds a few leads but can’t go to interviews, because she has to go fry burgers. Taking the unsuitable job instead of continuing to search for the job she’s actually qualified for has essentially cut off her hopes of getting another good job.