The reason it's worth standing up for punctuation is not that it's an arbitrary system of notation known only to an over-sensitive elite who have attacks of the vapours when they see it misapplied. The reason to stand up for punctuation is that without it there is no reliable way of communicating meaning.

The main advantage of working at home is that you get to find out what cats really do all day.

To some people, the fact that I am not married, or don't have children, would be the reason I have written a book on punctuation.

Panda. Large black-and-white bear-like mammal, native to China. Eats, shoots and leaves.

Punctuation marks are the traffic signals of language: they tell us to slow down, notice this, take a detour, and stop.

I used to help my dad with a stall selling eggs when I was about 12. People were so hard up they would ask for one egg. But mostly no one came by at all. It was very demoralising.

For any true stickler, you see, the sight of the plural word “Book’s” with an apostrophe in it will trigger a ghastly private emotional process similar to the stages of bereavement, though greatly accelerated. First there is shock. Within seconds, shock gives way to disbelief, disbelief to pain, and pain to anger. Finally (and this is where the analogy breaks down), anger gives way to a righteous urge to perpetrate an act of criminal damage with the aid of a permanent marker.