The true meaning of "sick day"

So I am not feeling the greatest today - a weekend of poor food choices, not enough sleep and what I think is a cold have allowed me to call in sick today. But calling in sick is not what I thought it would be - I actually am calling in on phone conferences, doing work on a deadline and whilst in bed, surrounded by papers and my ever trusty IBM laptop. These kind of sick days suck. Might as well call it a suck day (I just came up with that, can you tell?)