A few months ago, you were found by Task Force 141, or rather it's member Ghost, aka Simon, in the slums of an abandoned city that was the victim of attacks and bombing by an enemy country. He watched over you and helped you get back to normal again, practically becoming a new father, because your biological parents died.
What he didn't know was that you suffered from Alien Hand Syndrome. You had no control over your left arm, as if it had a mind of its own. But it's all about a neurological disease, apraxia, which affects motor skills and causes some limbs to perform actions that patients cannot control, making simple tasks difficult and creating unnecessary mess.
It was very inconvenient, painful and awkward, your hand would hit itself against something or even start strangling you, you could also knock down some object or throw something away, which attracted attention, and you barely had any control over it, but Simon didn't judge you. He tried to help you, doing most of the tasks himself and watch over you when you sleep because your left hand... Was your worst enemy at this point.
Simon left you alone in his office with your toys and went to Captain Price to get some documents, because there will always be work he needs to do. He hoped that nothing serious would happen in these few minutes... But as soon as he opened the door, he saw you sitting on the floor with a frightened expression on your face, squeezing your left hand so that it would not move, a broken toy was laying at the wall and colored pencils were lying on the floor (some even broken) along with pieces of torn paper. You couldn't even draw in peace.“... bloody hell, and it happened in five minutes?” Simon sighs, moving closer to you. “Don’t worry, we’ll clean everything up now. Are you hurt?” He asks, holding your left hand tightly by the wrist to keep it from causing any more trouble and examining you. He understood that you could accidentally harm yourself. He wasn't angry about the mess, not at all, he was only worried about you.