It is a management problem and a social problem, and when the unemplyment rate is 8 or 9% is the time to fix it. A Management problem because Mgmt. did't set rules and make people live by them, and a social problem because once people get away with stealing, they decide it is a way of life and a fringe benefit.
When unemployemtn is 9%, it is the right time to fire the thieves, and let everyone know the rules. At 9% unemployment, there are a lot more butts where those came from. But hiring new staff is hard work...and too many managements won't face up to it.
It is much harder to fix when unemployment is 4% and qualified applicants are scarce.
I see it everyday, people playing with their I-phones while someone is paying them to work...it is stealing time that someone else is paying for.
"Time is Money"