So what's your response to being served a bad--as in, improperly made--restaurant meal?
When I lived in the South, if your food wasn't right, you were expected to say something about it, and the establishment took care of it, usually in a friendly way.
In the area of California where I currently live, if I dare to say anything about inedible food, I'm usually treated in a very hostile manner.
What's the norm where you live? How bad does it have to be before you complain? What do you say?