War of the Worlds
So the earthlings intend to discover our secrets, eh? They think they're on the cutting edge because they're about to discover water on Mars, eh?
Well, you earthlings can have all the Martian water you want! In fact, here's a fair, even trade - our water for your stock of Diet Lemon Coke. In fact, let's really get interplanetary trade up and running; you take rocks, we'll take MP3 players; you take craters, we'll take Mounds. And so on. If you think that camping out in a Martian canal is fun, we'll be happy to do that body switcheroo thing we saw on Star Trek; and we'll throw in our tentacles as an extra-added bonus!
Hey there earthlings! Glad to know ya! As you can see, the Martian race is alive and kicking, but we're not the bad guys you think we are. Don't believe everything you see on the X Files! We're really a nice bunch of guys, as your exploration vessels are going to discover one day. In fact, we are actually a very cultured group, and we love cooking, among other things. One day we hope to host humans on our planet; we would love to have you as a guest! We've even got a special cookbook, which we can use to prepare your favorite dishes. It's called, "To Serve Man!"
Ha! Gotcha again! That one was from the Twilight Zone, right? To quote a fellow wisecracking real-life alien, Alf, "I kill me!" Seriously, it's a laugh a minute up here. Obviously, we're big TV fans. The truth is that our civilization is far advanced, and we could, if we wanted, vaporize the lot of you in about five minutes. But don't worry - just keep churning out stuff like "Everybody Loves Raymond" and "The Beverly Hillbillies," and you've got nothing to worry about!