Is It Curtains for the Apostrophe?

That's the question recently posed by the Huffington Post.

From the piece...

The other day I saw a temporary sign in a restaurant showing the way to the TOIL'ETS.

Unfortunately, I have no photographic evidence of this, but I am reproducing the word exactly as it appeared.

While this may have been a notably aberrant use of the apostrophe, most of us have seen signs that point towards TOILET'S or REST ROOMS'.

There are four common responses to noticing this kind of thing. The first is to proceed swiftly with no more than a flicker of distaste. The second is to pause and ask, facetiously, "Toilet's what?" The third is not to care at all. The fourth is to care a lot, to the extent that the sign must be amended with a marker before any further action can be taken. This last response can be creative rather than merely corrective; a friend of mine once altered a sign indicating REST ROOM'S so that it read: REST ROOM'S FILTHY. WEAR GAS MASK.