Some folks may think Pack my box with five dozen liquor jugs references a typical Saturday night in a college town. I saw that sentence most every day on a green-screen, vector-graphics monitor located in a US Navy SH-60B helicopter.
"Pack my box with five dozen liquor jugs" contains every letter of the alphabet. It was used to test the graphics driver on the monitors, and to make sure every letter appeared normally. For most computer users, this is not too much of an issue, but for the military, accidently classifying a Destroyer-class surface ship as a Soviet first-strike submarine could cause a few issues further up the chain of command. If the letters were off, or if they were distorted, we would have to replace the monitor. Luckily, two allen-wrench screws later, and you'd have the monitor in your lap. A quick swap, and the helo would be on its way to play hide and seek with dangerous toys.