Like the German air squad over the Channel thing. Apparently there actually was one coming in, but they only mentioned it once, very briefly, and there were no reactions or consequences.
Yeah, I picked up on the mention of it and there was sort of "Oh my golly gosh, London's going to be bombed!" kind of reactions going on but nothing much - no civvies were shown or harmed in the making of this episode :P

Lol @ your brother and your dad. That must have been so annoying, lol. And probably quite funny, too. ;)

Lol yup! Its hard to concentrate and keep a straight face when there's two of them going "oh hard cheeeese old boy!" everytime there was a character with a remotely posh accent on!