There are activist CEOs and rogue CEOs. And then there’s Tesla’s Elon Musk.

Musk, co-founder and CEO at the electric car maker, has repeatedly run afoul of the Securities and Exchange Commission in the last year via his personal social posts on Twitter. His “considering taking Tesla private” tweet resulted in his ousting as chairman of the company’s board on top of a $20 million fine, and he egged the regulatory agency on even further in February with a production-related tweet that it felt violated a settlement previously reached between the two sides.