[AnotherUnixGeek]

The row is believed to have begun after a clergyman of one order – either Greek Orthodox or Armenian Apostolic –accidentally pushed his broom into space ‘controlled’ by the other group.

Sounds like this episode of "The Munsters" where Herman and Grandpa are feuding and draw a line down the middle of the house. Hilarity ensues...

[Yardstick]

My thought (not as on-topic as yours) is of the episode of Newhart where the guys form rival gangs complete with gang jackets. But the embroiderer messes up and the gang names written across the back wind up being “Puffians” and “Hooligals”. I can’t remember what happens next, but I’m pretty sure hilarity ensues.