The Occasional WTF #2

Value(Cheese XOR Bacon) == –$0.05
Value(Cheese AND Bacon) == +$0.75

We can deduce that cheese and bacon are exceedingly complementary goods, but only in the context of the Angus Beef hot dog.

(The menu board at the shop had entirely different, but still crazy, prices for the toppings.  I’m going from memory, but “Cheese or Bacon” was something like a $0.25 surcharge, while “Cheese and Bacon” was $1.00 more than that.)