Reports reach the Diary that Chief Rabbi Sir Jonathan Sacks has invited Leader of the Opposition David Cameron to dine at his home on three occasions, and three times has been told that Cameron is unable to attend.

Of course, it may be that there is a genuine problem with dates — after all, Mr Cameron is an extremely busy man.

However, one Conservative insider tells us that the Tory Party leader is a little worried about the fact that Rabbi Sacks’s daughter, Gila Sacks, works in Gordon Brown’s office and that any conversation could get back to the Prime Minister? Surely not.