I was about 13 and hunting with my bow during the firearm season with my dad on some public land. I was toying with the idea of shooting with both eyes open. I didn't use a peep at that time either. A doe walked up and stopped about 20yds away broadside. I drew back and anchored but I kept both eyes open. creating a pin and a phantom pin. I shot using the phantom pin and missed the deer by about 5 feet[:@]