DonDiego supposes alanleroy may underestimate the capacity of the soon-to-be-dominant mechanical working class.
Robots require certain lubricants and fluids for proper operation; this is unlikely to cease anytime soon. So, while an unsuspecting alanleroy may not ingest a "booger", he may well swallow the occasional bit of oil or hydraulic fluid intentionally or "accidentally" placed within his burger.

*********[Endorsed by Bender Bending RodrÃguez]*********
And once the robot society commences to design/build/deploy nuclear-powered work units, . . . just a mite of radioactive waste may find its way onto a fast-food entree, at least occasionally.
Brave New World, . . . indeed !