Visit any city or large town in Western Europe or the US (I can't comment on the rest of the world as my travel to these places is limited) and the chances are that a coffee shop, bar or restaurant may well be staffed by those from overseas. This is never an issue when there isn't much background noise, the waiter/server doesn't have a strong accent and I'm sober. A combination of all three is bound to end in confusion.
A very pleasant dinner in a New York restaurant was topped off by the waiter asking if myself or my husband would like a dessert. It's true that we had consumed a few drinks, it was busy and I don't think the waiter was a local either, but in answer to our boozy nods, he informed us that, "The President's wife is a cheeseboard."
I still have no idea what we ordered.