There is an amusing blog for the grammatically-minded among us (I'm sure there's something wrong with that clause...) called The "Blog" of "Unnecessary" Quotations. If the appeal of the blog has to be explained to someone, that person is just not part of the blog's audience. The ridiculous, asinine, unneeded use of quotation marks is a personal bugaboo of mine, but finding them on signs has always been a great joy to me as well, even before the blog existed. Here's one I found today in the men's room at a nice faux-Irish restaurant.
1) So I wonder what "wash hands" really means in this joint?
2) ...and which employee has to "do it"?