Most of all, I am struck by an irony central to the lot of a purebred dog: As it attains the hallmarks of its breed, it seems to simultaneously relinquish its basic dogginess, until it is less a dog than a Pomeranian, Collie or Bloodhound.

The implication of AKC registration is that a dog who has it is better than a dog who hasn't.

My dog is vicious to the uninvited guest, lavishly affectionate to the invited one, and so freakishly acute that he has mastered the English language.

The Thames could be thought of as England's longest archaeological site, and no fewer than 90,000 objects recovered from its foreshore are in the collection of the Museum of London, whose 30-year relationship with London mudlarks is both committed and highly regulated.

My first three novels were all the subjects of intensely exciting flurries of calls from producers and even stars' production companies, and once someone actually hired a screenwriter to adapt one of my books - but it all came to nothing, so I tried not to get too excited when a Hollywood suitor came calling for 'Admission,' my fourth novel.

More or less, I am always saying, 'Let's do what has not been done.'