Originally Posted by exbayern

Are you referring to the 'did you pack your bags yourself' questions or the 'what did you purchase at the airport' and other random questions?

I have been asked the first set very rarely; only at LHR if I recall, and only for a UA flight bound for the US. The second set I was asked at MUC and FRA for UA flights bound for the US.

I fly from many western European countries on a very regular basis, and am asked the first set of questions maybe once or twice a year, if that. And since I recall being asked those in English, it would be at UK airports and most likely LHR.