I have been in management for 11 years, and I have yet to understand why so many managers give people so much crap for calling-in sick. I don't want those people around me or my other employees. I don't care if they are lying or not. If they have a sick day on the books, they are there to be used. And, for me at least, the faster they get used up, the faster the people who truly are abusing their call-ins all of the sudden have an attendance problem when the sick day's are all gone. These are the employees that are the problems....not the once-in-a-blue-moon sick person. And it's the employees own fault for using up all of the sick days so quickly and giving management the easiest, indisputable disciplinary action to hand out. Attendance issues comprise nearly 70% of all discipline handed out.
Again, not sure why call-ins are such a big issue for some managers. Let them dig their own grave, if so they choose to.