I don't know about you but I've known that aerosol cans contain flammable liquids since I was a kid. I guess all of the gadgets, internet, and video games deprived these guys from exploring the wonders of making a fireball from a can of Aqua Net and a well placed flame.
Regardless, their stupidity is our entertainment. After one of the guys blows out his birthday candles, his friends spray him in the face with shaving cream. The Barbasol turned into a sticky, foamy, glob of napalm on the birthday boy's face.
Photo/Video Credit: YouTube