Some kids got trapped in a cave in Thailand. Elon said Tesla would build a small submarine to get them out. A local cave expert who was advising the Thai government on how to handle the rescue operation said the Tesla idea was a pipedream and suggested a more practical solution. He called the Tesla proposal a "PR Stunt." Elon got upset and started bad mouthing the guy on twitter, eventually calling him a pedophile. Elon's rationale seemed to be that because the guy was an older, white male living in Thailand, he must be into pedophilia... The guy sued for defamation and Elon ended up winning because his defense argued Elon didn't really mean it. I'm serious...

https://www.bbc.com/news/world-us-canada-50695593