No!! you have an accent!!

When we stopped in Billings Montana on our road trip, we went to a subway for dinner. Well i have to say my order twice because lets face it "They dont get no folk who speak weird language like them there queen from England land!" and when we handed over our 'Subway gift card' we explained it was bought in Canada and hopefully it will work in the U.S. Well the cashiers response was... "They got Subway in Canada??" so immediately you just want to completely enlighten this geographically and worldly inexperienced human with a few facts. 2 come to mind...
1. You are only 4 hours drive away from the canadian border! youve never wanted to just go for a small trip one day?
2. You work for a company that is found WORLD WIDE! you dont know anything about your employer?
So this is the type of thing I encounter often, especially when in the states and especially because im Australian. I dont get upset about the fact they dont understand me the first time afterall Im the one in their country.
Its not usually an issue when im in a city, only when im in a country area when they dont hear a lot of diversity in language, it can be amussing.
I had one today on our way back from Barrie when we stopped to get a drink in this small town and I said "Do you still have coffee available?"
to which she replied "yes we have coke zero!"