ferris209 said:

Here in Texas, all soft drinks are Coke. If you sit down at a table and the waitress asks what you want to to drink (tea, water, Coke), you say Coke, she'll then ask what kind. I noticed it years ago that people from other states would get flustered at that point. It was just common place to me to order a Coke and then specify a Mountain Dew.

I imagine it could be flustering the other way around too.

Non-Texan McDonalds: Would you like Coke with your value meal?

Texan: Yes...

Staff member walks off and gets Coca-Cola.