Absolutely...but you know how human nature is. Also, if people have to take a sick day (and it counts against an ET bank or something like that) there are still people loathe to do it.
Ah yes, those that love to call in and stay home vs those that hate using sick/PTO. I had one out right at start Off the new year. Burned the 3 days of sick she gets plus a floating holiday. Got sick again, had to advance her 1 of the 2 weeks of vacation she earns. It stinks either way. At least I can write you up for excessive absenteeism