Seriously, how the fuck do you even tell that story without resolving the mystery of the quality of the revised sandwich?

  Subway tastes like 
  resignation and apathy.

One can only adjourn with the assumption that the alteration had zero effect or less, because it's unremarkable and forgotten, which would detract from the parable about burnout, because holy shit.

  mundane things can 
  surprise you

I guess that means hoagie chef's ardent recommendation. The story leaves us to imagine the chef (age, appearance, demeanor) on our own.

Fuck dumping your soul into human hamster wheels.