For Christmas a year or so ago, I was given a book called Eats, Shoots and Leaves, an amusing commentary on grammatical correctness. It dealt with the confusion that can result when punctuation is either left out or added incorrectly. In an entirely readable manner, it explained such things as the Oxford Comma, making it seem as plain as the nose on your face to those who had either never heard of it, or just never grasped it.
I often think of Eats, Shoots and Leaves as I’m driving round and about Riyadh. In particular, it’s the errant possessive apostrophe which makes me smile. Take this for instance.