I'm the foreigner here. That is the shock to me. Thank goodness everyone is sweet enough to see my learning curve.
Though it can be difficult for me to understand an accent, children look at me as though I'm not even speaking English.
I am forgiven when I say "freeway" instead of "highway. "
When I say the name of a town with the wrong inflection, people just stare at me until they can interpret what I've said.
If I say "Costco" or "Trader Joes" or "In N Out," I'm the weird one. (Even though I secretly think ya'll are weird for not knowing what those are! JK!)