A Panda walks into a cafe. He orders a sandwich, eats it, then draws a gun and fires two shots into the air. "Why?" asks the confused waiter, as the panda makes toward the exit. The panda produces a badly punctuated wildlife annual and tosses it over his shoulder. "I'm a Panda," he says, at the door. "Look it up." The waiter turns to the relevant entry, and, sure enough, finds an explanation. Panda. Large black and white bear-like mammal, native to China. Eats, shoots and leaves.

Nice clothes fall apart. Nice clocks don't work. Bits fall off the nice cooker. It is hard to accept that pricing is unrelated to quality, but it's plainly true. Nowadays, we pay the price that satisfies our particular personality type; and then we live with the painful consequences.

All writers learn this, in time: don't show your work to other people until it's safely finished. Even discussing your unborn book in quite general terms can be such an undermining experience that, afterwards, you give it up and go to live in Guatemala.

The problem is that it has become politically awkward to draw attention to absolutes of bad and good. In place of manners, we now have doctrines of political correctness, against which one offends at one's peril: by means of a considerable circular logic, such offences mark you as reactionary and therefore a bad person. Therefore if you say people are bad, you are bad.

The rule is: the word 'it's' (with apostrophe) stands for 'it is' or 'it has'. If the word does not stand for 'it is' or 'it has' then what you require is 'its'. This is extremely easy to grasp. Getting your itses mixed up is the greatest solecism in the world of punctuation. No matter that you have a PhD and have read all of Henry James twice. If you still persist in writing, 'Good food at it's best', you deserve to be struck by lightning, hacked up on the spot and buried in an unmarked grave.

It used to be just CIA agents with ear-pieces who walked round with preoccupied, faraway expressions, and consequently regarded all the little people as irrelevant scum. Now, understandably, it's nearly everybody.

Offence is so easily given. And where the 'minority' issue is involved, the rules seem to shift about: most of the time a person who is female/black/disabled/gay wants this not to be their defining characteristic; you are supposed to be blind to it. But then, on other occasions, you are supposed to observe special sensitivity, or show special respect.