I know people who, on roadtrips through the hinterland, insist on sticking to national chains on the theory that they are less likely to get some exotic sort of food poisoning that way, but that's not always a guarantee of anything either.
I've pulled off the interstate into a drive thru in Meth America, looked around at the condition of the grounds & parking lot, and decided to dine on a Slim Jim and a bag of pizzeria-flavored Combos from the local Gas & Sip for lunch rather than taking my chances on a Big Mac and a side of ptomaine.
.
