The pressurized liquid inside the bottle propels it back toward the man who threw it at the concrete monument. John Galt/YouTube video screenshot
The bottle strikes the concrete monument cork-first, causing the pressurized liquid to push the bottle back toward the man.
The projectile shoots straight toward the man, who appears to be struck in the hip by the bottle. The video ends with the man giving the bottle an incredulous look while bystanders share a laugh.
