When we were at primary school, all the toilets were made by Armitage Shanks - and their name was printed with pride at the top of each urinal.

Whilst having a piss, it was imperative that you touched the "k" in "Shanks" making you The King. Of, er, going to the toilet.

However, if there was more than one person in the toilet, you could lean over to someone else's urinal and press the "g" in "Armitage" because that meant that, far from being King of doing a wee-wee, the user was gay. And you would shout 'GAYYY' just to drive the message home.

This is one of those pastimes I wouldn't really recommend continuing into adulthood.