(2) When Sylvia Plath and co show up, ask them to write without a formula, If they refuse or if they can't, laugh in their faces.
(3) When fake ESP(English for specific purposes), EAP(English for academic purposes), EPP(English for professional purposes) experts show up, ask them how many hotel staffs, business people, geologists, chemical engineers, doctors, nurses, sailors, insurance people, software engineers have found their stuffs useful. If they don't have a specific number/figure, laugh in their faces.
As this lovely book illustrates, keep this in mind: Sophisticated elaborate ruses can be easily countered with very simple moves. Be simple, be even stupid.