Integrity
If someone is working 6 days a week and 60-70 hours a week and just needs some personal time...i don't think calling in sick shows a lack of integrity on their part. I don't blame them for that. If being "sick" is the only way they can score a day off because they work for a demanding company, so be it.
Luckily I work for a company that allows me to take time off without good reason. Personal time is just that, personal and nunyabizness as far as the company goes on the time request form. If it weren't for that, yeah I'd call in "sick" here and there if nothing else other than to go to a school event for my son or have a "stay in bed all day-day" with my girlfriend.
