Apostrophes seem to cause never ending problems from writers and proofreaders and the etiquette of using them also changes over time. Did you know that there are even organisations set up (and I quote) with the ‘specific aim of preserving the correct use of this currently much abused punctuation mark’. These include the Queen’s English Society, the Apostrophe Protection Society and the AAAA – the Association for the Abolition of the Aberrant Apostrophe. We’ll probably come back to this one time and time again but how are we supposed to get it right if even our teachers get it wrong? See http://www.dailymail.co.uk/news/article-418790/Half-teachers-make-simple-apostrophe-mistake.html.
