Flashes of, "What part of NO don't you understand?"

Sorry about your experience. Makes you wonder why some places stay open when they don't listen to what the customer wants. What if your request had been due to severe allergic reaction? Uncivilized.

Hey... something I forgot to ask in the general question:
Has anyone been really successful in dining at Italian and Tex-Mex restaurants? Salad and fajitas without the tortillas, sure, but what else when you get surrounded by pasta, etc?