I don't know. I'd be happy to be "under-employed" either in my field or out of it while looking for a better job, but not to the extent of McD's. It's not the actual work that's beneath me (I worked for McD's in high school, it wasn't all that bad!) it's the pay, Working $6 an hour when I could be looking for a job just doesn't make sense. I want to be available to return calls to potential employers or go to an interview at the drop of a hat and not have to ask my 16 year old co-worker to trade shifts!
Now, if the unemployment ran out, then yeah, I'd dig ditches before going on welfare. But unemployment is there so that we can makes ends meet while looking for work. No shame in taking it for that purpose.