Although neural technologies such as tDCS may someday have the potential to transform mental health care, their ease of use, low cost, and relatively low physical risk have led to broad availability and use with little oversight.

So set me down as one that will refuse to come into your treaty, though you should smoke a hogshead of tobacco over it.

The grapevine was that the reason for the school closure was to do with the fact that a lot of students from Bonda had absconded to go to war because Bonda was close to the border between Mozambique and Zimbabwe.

Now we are liberal with our innermost secrets, spraying them into the public ether with a generosity our forebears could not have imagined. Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and clouds operated by people we don't know and will never meet.