The place I work for (a law firm specializing in employment issues, by the way), gives us 10 sick days a year.
However, in our evaluations, if we even use half of those days, we get a lukewarm to bad mark in “attendance”. I should know, I used four sick days last year, and my review and bonus was downgraded (slightly, but it WAS downgraded) for my attendance.
EVEN THOUGH I often would come in weekends to work, and stay late as necessary. My billable hours (for you non-legal types, billable hours are extremely important for lawyers and paralegals) were good to very good for my position, but I still got downgraded relative to those who worked less hours than I did, because I was sick four days.
And here’s the topper: I get three weeks vacation per year. Last year, I used about 6-7 days. That’s actually normal for me: I usually “burn” a week or more of unused vacation time per year (you stop accruing after one week).
So, even though I burned more than a week of vacation time, and my unused vacation time was GREATER than the number of days I called in sick (meaning: I was out of the office fewer days than someone who never called in sick but used all his or her vacation), I didn’t get a good attendance rating.
Relating back to the OP: I certainly won’t come to work if I’m not feeling well, as there are things more important to me than money. But with policies like the one above, I can understand if someone else would come in when sick. I could easily have cost myself a couple hundred dollars, maybe even a thousand. I’m serious about that.