When people cc a whole bunch of private addresses on an email when they should really have bcc'd them because cc exposes the email addresses to the other recipients, whereas bcc does not.
Oh crikey, the UK Ministry of Defense made a blind carbon cock-up by cc'ing a bunch of afghan interpreters instead of bcc'ing them.
The artistic product of the male pervert who climbs atop the photocopy machine naked, presses his genitals to the glass, and pushes the print button.
As the glass was clean on the photocopy machine last evening, and as it is smudged with crotch-cheese this morning, I suspect that the janitor was making Carbon cockprints all night.