https://www.theguardian.com/technology/2019/dec/05/elon-musk-trial-vernon-unsworth-apology

Vernon Unsworth, who assisted in the Thailand cave rescue, had deemed Musk’s miniature submarine a ‘PR stunt’

Elon Musk’s attorney pressured a British cave explorer to apologize for criticizing Musk’s miniature submarine, in the third day of Vernon Unsworth’s defamation trial.