They do. You may think being off work sounds fun, but it's actually surprisingly boring and you don't get to catch up on the stuff you'd like to because you're actually lying around in bed. Even the Winter Olympics is inaccessible because the TV is downstairs and that's basically too big a move to shuffle a duvet/blanket/whatever. Darn.
So, if you're thinking of getting a sore throat, my advice: Don't.