Epic Fireworks FAIL Dude's Garage Goes BOOM!! Why Would Anyone Do This?

7/5/2015 12:57 PM PDT
You Gotta See This!

DO NOT TRY THIS AT HOME -- is the obvious takeaway from this video of some bros lighting up on the 4th of July ... inside a garage!

The guys thought it would be fun to spark up a fireworks mortar shell with the garage door closed. The only smart thing they did was to take cover.

Needless to say, this ends with a boom -- and what looks like at least a first degree burn.