An unabashedly bro-y YouTuber who makes money by posting videos of his dumb bro-y antics nearly killed himself in his latest dumb video. Jay Swingler took his experimentation to a whole new level of idiocy when he put his head in a microwave and filled the appliance with Polyfilla, a spackling paste that's supposed to fill holes in walls. Firefighters and EMS later came to chisel and cut the heap of plaster and metal in order to free his head.