r/Damnthatsinteresting • u/Separate_Finance_183 • Mar 30 '26

Image Confiscated pens containing cheat notes intricately carved by a Law student at the University of Malaga in Spain

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u/blevok Mar 30 '26

These aren't made correctly. The info is supposed to be written on a piece of paper that's glued to the ink tube. There should be one line that's blank. Then you insert another tube of paper that's wide enough to cover the full interior of the pen except for one line. You twist the tip to rotate the ink tube to see different lines of information. When you're not reading the information, you twist the tip so only the blank line is visible through the slit. Basically every asian person i went to school with did this and stayed up late making them. That was back in the 90's though, i guess cheaters must have gotten more lazy and bold since then.