I think we should nominate "~" as an indicator of sarcasm. What do you guys think? It could be used like apostrophes around the sarcastic statement. The tilde isn't really used often anyway. And when it is used, its in association with a numerical value, which can't be confused for a sarcastic statement.
How is it that the bike lock disappears (@ ~0:33) but the bike stays for several more days. Who would steal the bike lock but not the bike? I don't trust this.
(sorry, I'm in a weird mood right now, and my feet are so much more manly)