His relations with his aunt deteriorated, however, and Nielsen left her home when he was fourteen and he continued at school but earned his living by tutoring.
Ang kanyang relasyon sa kanyang tiyahin deteryorado, gayunpaman, at Nielsen kaliwa kanyang bahay kapag siya ay labing-apat at siya ang patuloy na sa paaralan ngunit kinita ng kanyang pamumuhay sa pamamagitan ng tutoring.