At the Guardian:
This was a case for Anti-Censorship Woman! I nipped into the nearest phone booth, hopped into my cape and coiled my magic lasso, and swiftly cancelled my own appearance; because, as a vice-president of International PEN, I could not give my August Seal of Elderly Writer Approval to such a venue.
Well done, Anti-Censorship Woman! was the response. How stalwart!
But possibly not.