Treasure alert

Any idea what an interrobang is, reader? No?! Well, Mister Trivia ("Elevating the Insignificant since 2006") can enlighten you.

Following one of his links and then wandering about at Wikipedia, I found there are punctuation marks to indicate irony and sarcasm. Who knew?! Bloody hell. Just what I need, except that I'm never quite sure whether my type of joking is ironic or sarcastic, so a punctuation mark to indicate "too damn stupid" would probably be far more useful.

I was particularly impressed that closed captioning indicates sarcasm with this:
(!)
or this:
(?)

So quick! So easy! Why isn't everybody using them?!