My friend does this a lot in his job
He says he has to be very careful with the colour scheme. Basically: Red = Bad; Green = Good; Blue/Black = Depends. Stray from that and people get very confused.
(Zoz prayed for twink on, Thu 4 Nov 2010, 19:11, 2 replies, latest was 15 years ago)

On one of my last days of fourteen years in the insurance industry
I endured a meeting in which the colour coding of report books was discussed with gusto.

Even relating this is bringing about a prickling behind the eyeballs - THE USELESS CUNTS. They're books. It doesn't matter what colour they are.
( The Disappointed Caravanner of the year, Thu 4 Nov 2010, 19:21, Reply)

yep, red amber green
people understand that.
I still get "OMG it's 90% but it's amber" emails
Then I have to explain rounding to them.
(PsychoChomp, Thu 4 Nov 2010, 19:27, Reply)

A guy I used to work with once gave a presentation to the Dept of Transport.
After carefully outlining the parlous state of the nation's public transport infrastructure the only question or comment he got was "How do you make those boxes slide in from the side in Powerpoint?"
(Zoz prayed for twink on, Thu 4 Nov 2010, 19:37, Reply)