The things you learn: Marku

[pne]

So apparently, the "correct" way to address Marek is as "Marku"—at least in Polish, which still has a vocative.

So yay! I like the vocative case; it and the dual number are probably my favourite grammatical features.

It was also fun to find out that Czech has it, too—by watching an issue of Little Red Tractor on YouTube and comparing the title with what the tractor is called when he's addressed directly.