I am a big fat hypocrite. I am a liberal who believes in paying tax and hates those who avoid it. I believe passionately in a fair society. I work hard in the community in which my business operates to try and give something back, because I know that community has made me fairly rich.

I despair of the UK’s rising inequality. I’m a Gladstonian centrist, although some days, I could probably pass as a socialist.

But I send my kids to private school.

Boom. I know - beat that for a dinner party conversation bomb. It’s right up there with “I support hunting”, “I love the EU” and “Invading Iraq was right”.

An explosive topic, guaranteed to blow away any pleasant conviviality and leave a bitter, drunken pit of shrill vipers. I guarantee that within an hour of my saying this, someone will leave the table in tears.