https://www.cnet.com/news/elon-musk-faces-legal-action-over-1-little-tweet-and-a-big-share-price-jump/

"Am considering taking Tesla private at $420. Funding secured."

With those nine little words last week, Elon Musk proved that when you're the head of one of the world's biggest companies, your tweets can cause shock waves (and land you in legal strife).