I stress late policies with several methods on the first day of class, I post reminders, and I take late deductions. None of these seem to matter to some students.
I do allow for extenuating circumstances such as new life, death, severe illness, sudden medical or natural disaster emergencies, and deployment. But I require scanned and emailed documentation. I am still seeing a flood of emails with excuses for late work with no documentation and the learners expect me to waive late deductions.
I like the idea of using the "real world expectations" to guide them. Does anyone have any other methods that work for them? I'm open to more suggestions.