Fact: You can jumpstart a car with an AK-47.
You now know this. You can’t un-know it. If you’re ever in a situation in which you desperately need to start your car’s dead battery, but for some reason you have neither a cell phone nor a set of jumper cables, but you do have your trusty AK-47 (don’t leave home without it!), you now know how to MacGyver your way out of that situation. Then, you can fight some bad guys, get the girl, and triumphantly drive off into the sunset as upbeat rock music blares over the end credits.
That doesn’t mean you should, though.