Once long ago a supervisor decided that he wanted to do something about all the staff that kept calling in sick. It seems that the company would give large amounts of sick time per month to staff and some people could not wait to get the time so that they could call in.
Well one day, I knew this was not the proper protocol, but I stopped the boss and asked him point blank what was the problem with trying to put an end to people calling off so much. I told him that when these staff people call off, they put undo pressure on others who are trying to work.
These were his words to me, he said that when a staff person continues to use up his or her sick time, there will come a time when they will run out. When that time comes, they will create and reek havoc on their finances. He said there is nothing worst than not having any coverage for loss of pay. The car note does not get paid, the house note does not get paid, your regular bills will not get paid because there is no money. Since you did not actually work, you have nothing to cover all this expense.
There has been some improvement, but we still have the problem sometimes.