Elon Musk recently found himself in hot water when his diving pod, which had been designed to rescue the 13 boys who had been trapped in a cave, was criticised for being unsuitable for the specific conditions of the rescue.  
Instead of agreeing to disagree, Musk fired back with a string of offensive and truly cringe-worthy tweets, insinuating that Vernon Unsworth, one of the cave divers, was a paedophile.