We wish we knew what the MarkPet was

What we know: it fires a ball, or some form with a chip in it—a marker. It is surrounded by a glucose like substance, which adheres to the surface of what it hits. You fire this at an attacker. The launcher is large, contains event time and occurrence information, and it is made of metal so it can't be easily tampered with. It has a laser sight. You can attach your phone to it. It's supposed to keep you safe, but we never thought firing something—anything
(besides maybe a gun, and only then if you don't miss)—at an armed assailant would ever make us safer. And it's only minutes away from a George Lucas lawsuit.