iron
One of the great things about living in this modern society, apart from all the creature comforts like smartphones and underpants for said smartphone, is that we no longer have to live in fear of being struck down by cannonballs hurtling through the air around us.
At least for the most part we don’t. But every once in a blue moon someone might just find a 40kg (88lbs) lump of iron blasting through the wall of their home and landing right next to where they are sleeping. This time that unlucky person was one Keiya Yamamoto of Kawasaki City.