Oh really? Says who?Those videos show objects which are near optimal for getting them to fall back in the direction they were shot from,
a light outer shell filled heavy liquid, and a bare-bone skull, both sitting loose on platforms, quite unlike a human head attached to a living body.
True. Yet they still stand as evidence that objects hit by projectiles do not always move in the same direction as the projectile. Why should we assume that the human head could not also react the same way? Actually we don't have to assume anything since it's already been established that it can.
