Scenario: You meet Jim. He is sweet, kind and most importantly, easy to talk to. It's as if you've known him your whole life. And hugging him, no matter where you may be, feels like home.
Of course he's an alien (or possibly a robot). But what you probably didn't realize is that YOU are an alien, too. Now if you'd picked up an $18.95 Alien UFO Detector Strap earlier, you wouldn't have dumped the one life form in the entire galaxy with whom your sexual organs are compatible.