Here's something folkie. When we were kids we'd stand on a low wall, the kind with the iron nobbles where the railings had all been taken for the war effort and dumped in the Thames, and play King of the Castle. This involved trying to remove the 'king' who occupied the wall but with an impediment, usually the use of only one arm.

This discussion is based on similar strategies, a pre-determined position with an artificial construct - the castle - being defended under the rules of the game while opponents are only allowed to use certain weapons or be called cheats.
I preferred looking at dirty pictures to my mate's sister's Dave and Ansel Collins records. Or trading American civil war cards. Tied to the cannon was a good'un and still inspiring.