Low productivity days

So you get out of bed first thing in the morning. You fall over, as something seems slightly awry with your sense of balance. You think you're maybe a little ill...or maybe it's because you had a bit too much to drink last night...or you didn't sleep very well...or perhaps this is the beginning of your slow but sure descent into insanity (but not so much as to prevent your inexorable rise to be managing director of a multinational corporation).

It doesn't really matter. What does matter is that you're not feeling 100% today. But you're not feeling that bad either. You know you could turn up to work and get something done, but on the other hand you're feeling a bit too fragile to have people piling work on you, and your boss shouting that you're slacking. So you call in sick.

If such a thing existed, you could instead take a low productivity day. This would mean that you'd still turn up for work, but that people wouldn't expect too much from you. You'd most likely spend a lot of time staring into space, drinking coffee and counting the number of tiles on the ceiling. But hopefully you'd also do some non-intensive work-related activities, like answering e-mails, proof-reading stuff, inputting numbers, or whatever the hell it is you people do at work.

Obviously the employers don't gain from giving you your low productivity allowance on top of your sickie allowance, so the two will have to be balanced somehow - say 2 low productivity days to one sick. Hopefully by giving people an officially-approved route to being a bit hazy, it will encourage them to come into work on days when they can still usefully get things done. Or they could just do a sickie.