Know your target and what's beyond.
That's one of the basic rules of firearm safety. So if you're going to throw up a metal canister and shoot it with a shotgun, you should know if there is dry grass behind your target. A group of gamers who also seem to be gun enthusiasts appear to have learned that the hard way.
In a video called "Remington 870 Shotgun Fail," the crew had the bright idea to try and explode what looks to be a can of spray paint. Their method? Shooting it out of the air with a shotgun.
Things seemed to start of "successfully," with the shooter hitting the target:
But while there were plenty of sparks, the goal of getting the can to explode didn't quite work.
So he tried again:
Something, however, wasn't right. As the cameraman noticed, the sparks caused by hitting the metal canister* traveled, hitting the dry grass and creating a cluster of grass fires:
Watch as the group works up a sweat trying to put them out:
Of course, we have to add the disclaimer that they could have started the fires ahead of time to try and crete a viral video. If that's true, it shows the group lacks even more sense. But if you watch closely after the third shot, the sparks caused from it do cause the ground nearest to the shooter to catch fire.
As one commenter points out, the rounds do appear to be incendiary rounds, possibly Dragon's Breath. So the sparks may not be actually caused by hitting the canister, but rather from the round itself. It would also explain why the can survived multiple shots.
Here's an example: