#9: Quiet Please
Everyone knows that the most important rule of being in the library is to be absolutely silent. Otherwise, it’s not fun for people trying to study hard and finish their work. A little noise is okay, but this Reddit user went beyond a simple joke with this one.

provided by constative.com
What was using an air horn supposed to accomplish exactly?! It’s entirely selfish for them to do this! Perhaps it was part of a dare, or maybe they just felt like being completely disruptive. Either way, getting detention seems like the perfect punishment for such a troublemaker. I hope they learned their lesson!