Downing Street is in a flap as it cannot find the traditional Homburg hat for the Prime Minister's visit to the German Chancellery on Friday.
For the traditional exchange of gifts when leaders meet, Cameron has chosen a boxed set of ''Alo 'Alo,' and a tape of a 'Fawlty Towers'. Mrs Merkel is giving Cameron a jewel studded poodle collar, identical to one she gave French President Sarkozy last month, and which Cameron admired so much.
A spokesman has said that Cameron will not be using the traditional words on his return as he is mindful of the fate that befell his predecessor Neville Chamberlain. It is thought likely he will use only the two words that follow in the Book of Common Prayer. 'O Lord'
Chamberlain later stood on the steps of Number 10 and read from the document he had agreed with Hitler:
'This is the second time in our history that there has come back from Germany to Downing Street peace with honour. I believe it is peace for our time.
'And now I recommend you to go home and sleep quietly in your beds.'
The final sentence will probably be sent by email to Eurosceptic MPs.
The following day Hitler invaded the Sudetenland, now part of the Czech Republic.. The Czech Republic is thought to be safe for the moment, but the Greek war ministry is believed to be in high alert.