54-year-old man suffered a self-inflicted penetrating chest wound from an automated crossbow used for hunting large animals (Figure 1), with an entrance wound in the left third intercostal space and an exit wound at the tenth intercostal space (Figure 2). The arrow was in the plane of the diaphragm and penetrated the left ventricle (LV), although no hemopericardium, hemothorax, or pneumothorax were identified. Intraoperative transesophageal echocardiography showed no significant mitral regurgitation despite the proximity of the arrow to the base of a papillary muscle.