Back End Employment

This graph from The Atlantic "The Jobs With the Highest and Lowest Unemployment Rates in the U.S." demonstrates what happens in a prolonged recession/deflationary economic time. 

Crime (and fear of crime); Medical/Dental needs from stressed out people overeating and drinking; Need for our healthy pets as companions of comfort; and clergy for emotional/spiritual help;   That covers 8 of the 12 occupations listed.

And if you can't cut it as an engineer or a speech pathologist - there is a back end plan (from the bottom) for all others - Septic Tank Services