The publicity-shy agency informs us that its latest ad campaign for Durex has come under the scrutiny of the Ministry of Defence.
The military incident in question seems to surround Durex's sponsorship credits for ITV's Am I Good in Bed? series, Britain's biggest live sex survey.
The spots showed pilots in fighter planes with the strapline 'Roger ... Roger ... Roger' (geddit?), because apparently the new Durex condom is designed 'to help people roger for longer'. (Is this a good thing? - Ed).
"There was some quite suggestive imagery," admitted Durex's Amanda Tucker. "There was an ejector seat and an in-flight refuelling sequence that didn't leave much to the imagination."
One viewer, who declined to be named, suggested that if your love-making is that mechanical, then you probably aren't very 'good in bed'.
Anyway, the MoD, who apparently have nothing better to do at the moment, contacted McCann to find out how they got hold of the war footage for the ads.
"The footage had all been officially cleared, although some did come from military sources in the UK and US," said a spokesman for the ad agency.
Oddly, he was wearing a trenchcoat, dark glasses and was going to Moscow for the weekend.
"We were able to assure the MoD that there had been no leaks," he sniggered.
Those guys ...