A day or two after Christmas Girl Who Won't Be My Girlfriend came over and watched a movie with me. About halfway through the movie she took her glasses off and placed them on the coffee table. A few minutes later there was a scene where everyone was speaking Spanish with subtitles.
Me: Do you need me to grab your glasses so you can read the subtitles?
Her: I don't need to read the subtitles.
Me: Yes you do. Otherwise you won't know what's going on in the movie.
Her: No. I don't!
Me: Oh yeah.
Seems I'd forgotten that English is, in fact, her second language.