Looks like Karl is on a quest to find the perfect partner to practice Japanese with! It's difficult to find a Japanese person who is open to speaking slowly and clearly so that foreigners can practice. Miki means well but I have a feeling she's putting too much in too soon for Karl and he just got a bit scared. Ok, maybe A LOT scared! I don't know about you, but when I have to respond in Japanese, I always want to be able to do it without a long pause to think. I'm sure people understand that I need a minute to gather my response but it makes me feel slow.