AP, LOS ANGELESTelsa chief executive Elon Musk has owned up to insulting a British spelunker in a rash tweet, but would not concede on the witness stand that he called the man a pedophile. Musk said the insult meant only “creepy old man” and did not literally mean he was calling Unsworth a pedophile. Despite working around the clock to build the sub in short order, Musk arrived in Thailand late in the rescue effort and the craft was never used. Musk, who was dressed in a charcoal gray suit and white shirt, remained composed on the witness stand during questioning from Unsworth’s lawyer, who called him as his first witness. Musk received no compensation for his efforts, although he acknowledged his work could have been interpreted as a “narcissistic” publicity effort.