Their behavior goes beyond the bounds of 'decency'. [=it is not decent or acceptable]
If you're going to be late, please 'have the decency to' call and let me know.
Sending aid to the victims was simply a matter of 'common decency'.
(..) So body in the bath tub, his eyes were wide open and the only thing missing was... His ring, sir. Why did you drain the water? Out of common decency. Crime is common. Logic, is rare. The decent thing to do is catch the killer, not to provide conflict to the cause. What is that? (..)2009 Sherlock Holmes