Mas Oyama , Kyuso Shin Ki in Hawaii punched over a ton on impact meter used by Rocky Graziano who'd punched 1000 pounds demonstration several times.. Had a couple of murder warrants outstanding in Japan for awhile.. Also had done a couple Okinawan Bull Fight demos, punched out bull, horn break one time. Okinawan Bull fight more like Cretan Bull Dancing than Spanish stick bovine with pointy sticks and sword blade. T'ang Fist and solid stance can break ribs, cause a heart stop for couple seconds and in a couple early before chest armor required tournament caused death by ruptured aorta . Broken nose is common with light pads on hands, small helmets. and full contact rules. Throat is NOT valid target in Shia but groin and nose are common targets. spine and Kidneys, knees NOT valid targets in Kyu competition, Rare in Dan level but taught a lot for the serious professionals- body guards, police, prison guards, military.