I worked for a big outfit several years ago where the stated policy was "If you're sick stay home". I came in one day sick as heck but since I didn't work around other people and I had a big project to finish I came in. Boss sent me home didn't like to see me coughing and retching in the trash can. Come annual eval time he gigged me on my raise for taking a sick day, cost me 2%. Then he got indignant when I reminded him he told me to go home. I found a better job 4 month later.