In college, I had the same professor for Spanish and German. (In the same room, too!) Every once in a while, I would accidentally mix up the vocabularies. My pr

In college, I had the same professor for Spanish and German. (In the same room, too!) Every once in a while, I would accidentally mix up the vocabularies. My professor's mind locked up for a second before he switched gears, realized I was talking in the wrong language, and then switched back.