One of my favorite, most beloved items--a 45" record featuring Aquaman and Flash stories from the good folks at Power Records!
I absolutely loved those Power Records, and spent many an afternoon sitting by my parent's record player (that was the size of a small car), reading comics listening to these dynamic audio adventures. They were exciting, fun, and look at that cover art--Neal Adams! Over the years, I've managed to find them all again and even ones I didn't have (they did a Shazam! one? really?), and I play them every so often when I'm a particularly retro mood.
The Aquaman story in question, "The Defeat of the Dehydrator" concerns a race of aliens stealing Earth's water, because all theirs has dried up (or something like that). Aquaman, with the help of Mera, stops them of course. But it ends really grimly, where one of the head aliens yells "Aquaman! You have defeated us! I have failed my people! And now they are truly doooomed!"
Aquaman and Mera, clearly not caring about the billions of people soon to die a slow, lingering death due to thirst, congratulate each other on a job well done! The last thing you hear is the sound of lapping water, clearly a last kick in the pants to the soon-to-be-dead alien water thieves.