>-ona, -onica - room where it is done:
>A little insider humor?

No, but you're getting it. Anything said can be construed as an innuendo, depending on the ears of the listener. Even "you're getting it" may be taken less than literally :).

>čionica (učiti - to learn) - classroom
>And now you type the upside down carrets? How you do that?

My default keyboard is Serbian, so I just use it. With any central-European keyboard: type rightAlt+3, then c, and you'll get it. Basically, rightAlt + anything in the top row is a prefix to give an accented character: rAlt+9 - acute, rAlt++ - umlaut, etc etc. RightAlt+E - euro, rAlt+F - [, rAlt+G ] etc etc.

>Um... back to English. It's so much easier to make fun with :).
>Easier on the throat [at least] - and the keystrokes too!

Easier? I can't name anyone back home who wasn't making his teacher wish he had an umbrella while learning to pronounce th and th. And the unheard, almost unpronounced r which still has to be pronounced, somewhat... and then the u which is never (except in butcher) pronounced as u, but rather as you or uh... back home, the advice for a beginner in English pronunciation is to stuff a hot potato in the mouth and, thus equipped, practice in front of a mirror :).

But in the end, I've learned that there are practically no unpronouncible combinations of up to four consonants - you can do it, believe me.