"Signs and notices 18" joke

These are supposedly actual signs that have been found in and around parts of England.

Sign in a Laundromat AUTOMATIC WASHING MACHINES: PLEASE REMOVE ALL YOUR CLOTHES WHEN THE LIGHT GOES OUT

Sign in a London department store: BARGAIN BASEMENT UPSTAIRS
In an office: WOULD THE PERSON WHO TOOK THE STEP LADDER YESTERDAY PLEASE BRING IT BACK OR FURTHER STEPS WILL BE TAKEN

Outside a farm: HORSE MANURE PER PRE-PACKED BAG DO-IT-YOURSELF

In an office: AFTER TEA BREAK STAFF SHOULD EMPTY THE TEAPOT AND STAND UPSIDE DOWN ON THE DRAINING BOARD

On a church door: THIS IS THE GATE OF HEAVEN. ENTER YE ALL BY THIS DOOR.(THIS DOOR IS KEPT LOCKED BECAUSE OF THE DRAFT. PLEASE USE SIDE DOOR.)

Outside a secondhand shop: WE EXCHANGE ANYTHING - BICYCLES, WASHING MACHINES ETC. WHY NOT BRING YOUR WIFE ALONG AND GET A WONDERFUL BARGAIN?

Sign outside a new town hall which was to be opened by the Prince of Wales: THE TOWN HALL IS CLOSED UNTIL OPENING. IT WILL REMAIN CLOSED AFTER BEING OPENED. OPEN TOMORROW.