But to get back on topic ........ The daftest sign I ever saw was a handwritten one pinned up outside of a Southampton "Whole Food" shop run by Students from the local Uni. All flower in yer hair, patchouli incense and wide, wide flares, back in the 70's. It read "RECYCLED TOILET PAPER". I went in and asked who scraped the sh*t off it.
Another that still pleases me was seen on the edge of Epping Forest. The farm displaying it had constructed an excellent large board complete with a number of hooks from which they could hang signs of produce available.
The sign read "PICK YOUR OWN" at the top and at the bottom the legend "JUST DRIVE IN" and between these two fixtures they would hang "RHUBARB", "RUNNER BEANS", "NEW POTATOES", "STRAWBERRIES" etc. On the day I drove past the only hanging sign read "FRESH HORSE MANURE"
So the sign now read:
PICK YOUR OWN
FRESH HORSE MANURE
JUST DRIVE IN
Not so funny written here but I damn near drove off the road for laughing.