I’ve oft gotten stuck in a screen terminal by hitting Ctrl+s instead of Ctrl+a. And then I would never know how to get out of it, and I’d have to re-login to get my screen back. It didn’t happen too often, but often enough the past month or so to drive me to figure out why it does this.

A quick google led me this page on what to do if you get stuck in a Unix login session. Turns out that Ctrl+s “tells the system not to send any more data to the screen until a CTRL-Q is pressed”.

Oh, of course. A quick Ctrl+q and I had my screen back. Why didn’t I look that up a long time ago??