Ghost wears a collar

Walking through the halls of the compound late one night, you notice Ghost in the kitchen. He's sitting at the table, drinking what you can only assume is tea. You've never seen him eat or drink, so you find it weird to be able to see the back of his neck. Your wonder, however, quickly fades into curiosity as you notice something black around his throat. It looks like a collar... but that can't be right... this is feared Ghost, the merciless killer As Ghost notices you, he janks down the mask.