In Liverpool there has long been a myth that Adolf Hitler worked at the city's Adelphi Hotel in the early 1920s, where he developed his liking for uniforms through wearing a porter's garb on the door.
If true, how should the hotel play it? Maybe not a Hitler Lounge to mark the fact but perhaps a mention in some historical pamphlet.
Sadly, it's just a myth. Nonetheless, the Adelphi - the once-great hotel of a once-great city - has had other public relations puzzles to ponder of late.
And, if a PR man had advised against giving the cameras free rein in the former five-star hotel (just as he might counsel against doing so in the Mandarin or the Peninsula in Hong Kong), he might have been proved wrong.
The Adelphi has 402 rooms, five kilometres of marbled corridors and pillars, pink chandeliers, and a commanding position in the city centre.
Its brochure begins: 'Liverpool can again boast one of the top hotels in the world.' But the Adelphi, it ought to be understood, is Fawlty Towers writ large.