Elon Musk's college dorm-mate, Navaid Farooq, joined Musk's first company, Zip2, in 1995 after bonding over video games during college.
Farooq quit Zip2 after six weeks due to the intense work environment, feeling he had to choose between being Musk's friend or coworker.
Musk has collaborated with family and friends in various ventures, including his brother Kimbal Musk and cousins Lyndon and Peter Rive, despite occasional challenges.
Musk's relationship with investor Peter Thiel soured after co-founding PayPal, but Thiel later reluctantly supported SpaceX during a critical phase in its development.