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It's a popular election-year refrain: "If so-and-so is elected, I'm moving to [foreign, and presumably better, country]."

Cute. However, faced with the prospect of a Donald Trump presidency, the rest of the world could very well be just as worried as many of us are here in the U.S.

Take, for example, DJ Kullid, a South African Twitter user who spent Tuesday evening explaining just why a Trump in the White House still terrifies her from thousands of miles away.

So the next time you hear someone make a glib, if well-meaning, joke about leaving the country should Trump get elected, just remember: What happens in America doesn't stay in America for long.