If I could, I'd never take a sick day but medical issues all but ensure I have to take one about every month. If you're supposed to be at work, then people aredepending on you being there to do your job. You call in sick, legitimate or not, and then somebody else has to cover your work load. Basically, if you're faking it, you're being a lazy sack of shit who doesn't deserve that job because you obviously don't care enough to be there.