Some people devote their lives to science, some to religion, some to high finance. And then there's Joerg Sprave, who spends his day-to-day creating zombie-killing slingshot insanity. Or in this case, zombie-capturing slingshot insanity, for when you need to to take them in alive undead.
You might laugh now, but when we do battle with the zombie armies of the future, we're going to need a few prisoners. Even if all the information they'll give up is name, rank, and BRAAAAIIIIINNNNNNNSSSSSSSSSSS.