Wasn't from a restaurant but was from some Vietnamese Deli Shop selling French Sandwiches Vietnamese style. When I ordered I made the mistake of forgetting to tell take out the green chili. So when I got it and took 3 bites, my tongue was burning as hell. Never had something as spicy as that and I'm a person who can tolerate among the spiciest food there is out there. But that time it was way over what I could take.

Couldn't remember the name of the shop though.