Exactly how inept do you have to be before the shareholders can successfully sue you for blowing up a company? Musk isn't a slope-browed incompetent; why is he

Exactly how inept do you have to be before the shareholders can successfully sue you for blowing up a company? Musk isn't a slope-browed incompetent; why is he acting this way? I knew when he bought it his stated intentions were probably going to cost the company money long-term but it's like he's intentionally trying to burn it to the ground.