“The principle here is pretty simple. If you fire a bullet forward, the recoil pushes you back. So if you fire downward, the recoil should push you up.” Why didn’t we think of that? That means if Nick had bought a few more WASR-10s, he could save money on gas (and avoid all that “Mad Max-esque post-apocalyptic war zone” traffic) by taking his jetpack to work instead of his slightly dented new car! That’s the conclusion of a recent post at what-if.xkcd.com, anyway. See, an AK has a better lift to weight ratio than a Saturn V rocket. Of course, the amount of ammo you can carry would be a consideration after a few seconds. We don’t know how far Nick lives from work, but if RF’s willing to fund the experiment (he’ll need AKs with giggle switches and the necessary ATF stamps, of course), we know Nick’s just the guy to strap on a helmet and give it a go…with Tyler filming the whole thing, naturally.