In reply to Double Knee Bar:
You don't read, do you? Start by reading the OP.
Then where I gave several examples of notices at Font that most of you plain ignore - like not using chalk, for example - I gave others.
Then where I said there was a plaque that disappeared.
Then I pointed out that there are no notices saying don't bolt Stanage, but none of you would dream of doing it.
Then when I, and others, pointed out how fragile it was - visibly.
You've been given plenty of reasoned arguments, you choose to ignore them, so what is there left to do except draw the obvious conclusions?
PS. The real name is the "Bilboquet", a child's game called 'cup and ball' in English. A ball with a hole is tied to a wooden spike which is used to throw it in the air and catch it as it comes down. It does look like a dog's head, but the nearby Cul de Chien is the source of confusion, but this is another, and opposite part of a dog's anatomy.