I know from experience that NOTHING compares to a sick man. NOTHING.
They are on their deathbeds with a head cold. But, by GOD, they will bull through it complaining all the way. No, I'm not sick. No, I'm not seeing a Dr. Yes, of course I'm going to work (and spread germs.....)
If perchance they don't actually go to work, they lie on the sofa dying all day and needing Maid Service.