When I was a young kid, I went to some rural Ontario diner with my parents. I asked the waitress for a Coke. She responded by asking what kind of coke. I think I was confused by her question and simply shrugged my shoulders and said a regular Coke. She stared at me for a while, and then asked what kind of regular coke: Pepsi, 7UP, Canada Dry.
I really don't remember what happened afterward, but I do know I was confused, not knowing at the time some people called pop coke.
I have another lame anecdote involving fries. "You mean you want some chips?" etc. etc.