KK, KKK, 18K

By term 2 of kindy, EggEgg is having a good grasp of reading and writing.  This evening, he wrote on my noticeboard:
"K, KK, KKK, KKKK"

Amused, I recognise its significance.  His kindy class is called "KK" (as in Kindy Knight, named after the class teacher Miss Knight. The other kindy classes are KA, KC, and KM)

I told him, "Well, you have written so many K's.  I know you belonged to KK, but I didn't realised that you belong to KKK and 18K too!"

EggEgg is puzzled. "What's KKK and what's 18K?"

"KKK stands for Ku Klux Klan which was a group of murderers who like to kill black people.  And KKKKKK 18K is the triad organisation in Hong Kong which likes to do bad things.  Now which one are you in?"

EggEgg is happy.  "I belong to all the K's!!"