I've never seen it happen. I've never spoken personally to anyone
in this business to which it happened. You've posted various
internet articles, of unknown veracity, that it has happened. I don't
put much stock into news reports, as the reporters tend to exaggerate
such events and extrapolate them beyond reality.
So I don't know that it DID happen, I don't know that it didn't
happen. I don't believe it is widespread, or I would have spoken with
someone in the last 35 years to whom it happened (having visited hundreds
of DP shops over the last 30 years in several roles, as well as working
for employers with over 100,000 employees and co-founding a server
company which employed about 100 engineers).