He concluded at that time that theoretical physics would be closer to his heart than experimental physics. He was also still at odds with his teacher, Patrick Blackett, who was not much older than he was.
On one occasion, Oppenheimer left an apple doused with harmful chemicals on Bleckett's desk. University authorities informed Oppenheimer's parents of this fact and threatened consequences in the form of probation. The parents, however, used their own connections to prevent this from happening.
