If Your Tire Ever Looks Like This, Pull Over Immediately!

We've probably all realized we might have a flat tire while behind the wheel. You noticed the car trying to pull to one side of the road so you get out to take a look and, sure enough, one tire is getting awfully low. There's usually something you drove over that's sticking out that's the cause but this guy found something rather interesting. This massive bubble was protruding from the tire wall when he began filming just as it was set to explode!