"Mr. Jung, how...er, what do you think about this marketing strategy?"

Remember this?

That's an ad on a subway platform here in Seoul for an English program (seems to be some sort of online immersion program) that is advertising with Koreans in various situations where they can't speak English and wish they could...ergo use our product and you'll become fluent. It's actually a pretty good ad campaign aside from the fact that they didn't check whether the English they were using was correct.

Fast forward a few weeks and looks like they found out about the error as now the sign has a (somewhat clumsily added) correction. Now it looks like this: