He reads lips.
A while back I rented The City of Lost Children. It had the English translation that I turned on, thinking maybe it would be preferable to the subtitles. It drove me up the fucking wall. Voices that didn't quite go with the characters along with the mouths not synching up were way too distracting. So I flipped on the subtitles and everything was fine.
I also have to watch these videos for a college telecourse that I'm taking. I go into the library where they have tvs you can use. The one I sit at has the captioning on, and I can't turn it off, so when I watch the videos, I find my self inevitably reading all the captions. Whenever I notice that I'm doing it, I force myself to stop, then I go right back to it a minute later. It's odd.
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100 pounds of shit in a 25 pound sack.