Although a lot of us have already mined a lot of joy from making our confused friends watch something out of context, it's still pretty amazing to think about how easily some logical behavior can seem completely insane without the backstory.
While it's true that some things can be executed weirdly enough that they still give us pause even when we understand them, a situation can be almost exhilarating in how confusing it is when we have no frame of reference.
So while I can't promise that everything on this list has a satisfying explanation, I can only hope that by the time we're finished here, your curiosity will be mostly satisfied.