It’s an important and popular fact that things are not always what they seem.
For instance, on the planet Earth, man had always assumed that he was the most intelligent species occupying the planet, instead of the third most intelligent.
The second most intelligent creatures were dolphins, who, curiously enough had long known of the impending destruction of the planet Earth. They’d made many attempts to alert mankind but most of their communications were misinterpreted as amusing attempts to punch footballs or whistle for titbits.
So they eventually decided they would leave Earth by their own means.
The last ever dolphin message was misinterpreted as a sophisticated attempt to do a backward somersault through a hoop, whistling The Star-Spangled Banner.
In fact, the message was this: “So long and thanks for all the fish.”