I knew a guy who worked at one of the national labs that had its own Cray-1 supercomputer, in a machine room with a big observation window that visitors could a

I knew a guy who worked at one of the national labs that had its own Cray-1 supercomputer, in a machine room with a big observation window that visitors could admire it through. Just before a big tour group of VIPs he knew would come by, he hid inside the Cray-1, and waited patiently for them to arrive. Then he casually strolled out from inside the Cray-1, pulling up the zipper of his jeans, with a sheepish relieved expression on his face, looked up startled at the tour group gaping at him through the window, and scurried off!