My sister in Australia received this important piece of parchment.

What mysterious parcel was this? I had sent her a package; a few of my ‘business cards’. Being mean I did not send them with a gift or greetings card, but in the smallest envelope I could find to save on postage. To be fair to the Border Force it could have contained microchips or whatever spies use these days. My only worry had been that the tiny package would be lost in the post – not exactly a worry as I had another few thousand at home. Now I know the Australian Border Force could be on to me and shall have to be careful what I write.