It's a UK thing. As ever we get asked the silliest questions. I was asked if I had let the bag out of my sight since packing whilst transferring at Stansted. I said yes as it had been in the care of their airline since I placed it on the scales at Dortmund. No reaction.....bag checked in and on my way.
Never been asked in the US. Never understood the point of it...but as an air traffic controller I am well used to having "dangerous" articles taken from me as I go through security...that yoghurt could devastate the tower...
