It seems like I keep getting dragged back into IRC (see InternetRelayChatAgain), and apparently irssi has a bug where /j #chan<TAB> fails to work makes for a frustrating 20 minutes when you don't use windows in irssi (I just have one window for all messages and /j switch between them).
Well, actually now I /r to rotate between them as I wrote another needs-to-be-improved irssi script and added it to my repo.