In 2018, for example, Musk announced he had the funding to take Tesla private at $420 a share—a shaky claim that forced him into a $40 million securities fraud settlement with US regulators. Also that year, Musk baselessly accused a diver involved in the rescue of 12 Thai children trapped in a cave of being a pedophile. And just this month, he agreed to join Twitter’s board, quickly backed out, and is now offering to buy the social media network for $54.20 a share, citing his lack of confidence in the current management.

Some Twitter employees are reportedly freaked out at the prospect of Musk buying the company—and understandably so. Research shows that volatility and inconsistency are among the most dreaded traits in a boss. And those are qualities Musk has demonstrated in spades.