That's nothing- run `curl https://xmppwocky.net/curlme.txt https://xmppwocky.net/curlme.txt` on, say, OS X Terminal.app (and a lot of Linux terminal emulators,

That's nothing- run `curl https://xmppwocky.net/curlme.txt https://xmppwocky.net/curlme.txt` on, say, OS X Terminal.app (and a lot of Linux terminal emulators, too) and your terminal window will do things like steal focus, maximize and minimize repeatedly, move around the screen... (don't do this on a terminal you care about! on some older versions of OS X, this would hard-lock the entire UI (for all apps, requiring a reboot or something!), but these days it's sufficient to force-quit Terminal) There's some wacky stuff out there: https://www.xfree86.org/current/ctlseqs.html https://www.xfree86.org/current/ctlseqs.html