I've only myself to blame, of course, but it was downright embarrassing when I went to visit a friend of mine in Berlin last year and he and his friends over there were, without exception, at least trilingual and then there was me with only "Sprechen Sie Englisch?" and "Nein, ich bin kein Arzt" firmly committed to memory. I didn't even need the latter.
Why on earth did you commit "No, I am not a doctor" to memory?


It's that huge lifestyle change they warned him about! 
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(or anything related). Might try to learn it this year though.