Note that the Graphing Calculator story is not something that could work after approximately the turn of the century. Security tightened up considerably sometime around then.
There’s a few cases of people walking into ‘secure’ data centers plugging in their laptops only to realize they’re at the wrong company. People while swipe badges, act befuddled because it didn’t work, and then get let into the building. Or get out of an elevator with a bunch of people and just walk in as part of a crowd which holds the doors for each other.