A sysadmin habit: screen locking
Years and years ago, I bound a function key in my window manager to
xlock and then carefully trained myself to hit F10 (the
aforementioned function key) the moment I got up from my chair to
leave my cubicle-office. It didn't matter how trivial the errand or how
short it would be; I'd hit F10 and locked the screen. By now I have
this habit so ingrained that it's become one of my little twitches.
We have an access-controlled office area and everyone in here is some sort of system administrator, so it's probably pretty harmless to not lock your display when you walk away from the computer. Probably.
The reason I bound starting
xlock to a function key was to make it as
fast and easy to do as possible; the faster it is to lock my screen,
the more likely it is that I'll do it all the time. No exceptions, no
'I'll just be away for 30 seconds and it'd be too much of a pain to find
the menu entry'. I figured this was well worth stealing a function key
away from programs that might want to use it.
(This reminds me that I need to turn off the automatic display locking timeout on Fedora Core 5, because it interacts badly with a KVM; I'm a bit tired of finding the display on my test machine locked just because I switched to another machine on the KVM for a while.)