I think I saw this in "The One The Got Away". A big house in North London - was that Trent Park? They worried about bugs so talked leaning out of the window, then found a bug under the window sill. Also a fellow detainee, apparently a German Officer but on our side, got them talking freely.
I told the story below, here:
Pioneer Corps in Europe WW2 1944 - 1945
My "aunt" and godmother, a woman with a very mysterious background, told of the time she spent as an ATS Sgt cook* at a couple of large country houses. The "guests" were high ranking German officer PoWs who deserved, and received high quality food and hospitality. She was a very competent cook and
patissier, who just happened to also be a highly competent linguist, fluent in German and French. She had polished her languages while training in Switzerland on the real
Cordon Bleu course and in European hotels in the 30s. A coincidence of posting? I think not.
She had been briefed on not letting slip that she was a linguist and to just listen, casually but carefully, during her duties. True to form, the Germans ignored the mere serving woman and, occasionally spoke carelessly. Perhaps nothing important but it all added to the picture.
Now, back to the thread: Many of the staff who carried out menial tasks and small repairs (it was, apparently a game for the Germans to inflict minor damage/sabotage to the fabric of the building, as well as searching for, and finding, "hidden" microphones) were Pioneer Corps. The Germans complained at the house being staffed by technical troops but were mollified that, in the British Army, The Pioneer Corps were just general duties dogsbodies with no particular expertise.
However, these particular "pioneers" were mostly Jewish and all native German speakers whose skills lay in emptying bins, cleaning the house, a bit of painting and plastering etc.
and listening. Again, once the Germans had been told they were menial labourers, they disappeared from the Germans' sight. The Germans remained, of course, vigilant in the presence of the British officers and Provost Corps guards.
As for Auntie Jean, after the war she became a
ladies' companion and lived in the basement apartment of a Bayswater mansion along with a few similar ladies. Her job seemed to be accompanying wealthy (mostly Jewish) American women on tours of Eastern Europe. I had masses of random Yugoslav, Hungarian etc. trinkets and souvenirs from her. This was in the 50s and 60s. After the wealthy American tourist market changed she was employed in some capacity by the American Rice Council. This seemed to involve travelling round Eastern European farming areas, into the Balkans and even Ukraine and the Caucasus. All at a time when it was pretty much impossible to obtain a visa to these areas.
You can't imagine how much I wish I had asked her what it was all about. But, in hindsight, if it was interesting, I don't suppose she would have told me.
*My real Aunt, who was also an ATS Sgt cook, always maintained that she just couldn't understand how Auntie Jean had managed to get to the position of Sgt without having gone through the usual recruit training and promotion courses. Of course, it had to be because she was 'posh'. Hmmm. Auntie Jean never said. And they shared a flat for nearly the last fifteen years of Jean's life.