Farewell, Western civilisation

That's is, folks; the final whistle, the last shout, the death knell. When Marks & Spencer starts using a grocer's apostrophe – or, more accurately, the opposite of a grocer's apostrophe, omitting one where one ought to be – you know that it's only a matter of time before Western civilisation implodes and we all revert to apathetically rolling around in the muck, splitting infinitives and just not caring.
M&S Grocer's's apostophe