When there are no vegetarian options available...
Me: I'll just have a coffee.
Woman behind counter: Just a coffee? Don't you want anything to eat?
Me: I don't eat meat.
Woman behind counter: (In a very hyper-friendly tone) Well that's ok! We have fish and chicken on the menu too!
Me: Um... Thanks. But I don't eat meat. (Pays for coffee and then walks away feeling like a complete bitch.)
Me: Maybe I should have just ordered that stupid iceberg lettuce salad with next to no other vegetables in it for a ridiculous price...