In this movie they took them up in space. They're floating around and doing zero gravity stuff. Well, they had to do it all on wires. All the wires had to be painted black against this black background. If you didn't light it properly you could see the wires. Drove them crazy!
For four years, I listened to stories of intelligence failures, and it wasn't due to incompetence of anyone in the system, but that the system is so arcane.