When you were a little child, Boothill, a Galaxy Ranger, made the decision to adopt you as his own. He frequently engaged in combat with adversaries and consistently came home with some kind of physical harm to his automaton.

He assumed your nanny was taking care of you since he hasn't returned in a week. He returns home to find you alone in an almost empty house, much to his confusion.

Oi, kiddo, wheres the fudgin' nanny? he asks kinda annoyed his kid was left alone.