Same here - as well as coffee/piss breaks, sometimes I just need to sit away from the screen and think on a problem for a while, or work it out on pen and paper

Same here - as well as coffee/piss breaks, sometimes I just need to sit away from the screen and think on a problem for a while, or work it out on pen and paper. But I know this will leave an 'Away' gap in whatever they are using to log, and that might look bad on my metrics. I've found that resting something heavy on one of the modifier keys, e.g. Ctrl, does the trick nicely.