“I could be a severe bastard,” he writes. “My experiences at the Royal Shakespeare Company and the National Theatre had been intense and serious … On the TNG set, I grew angry with the conduct of my peers, and that’s when I called that meeting in which I lectured the cast for goofing off and responded to Denise Crosby’s, ‘We’ve got to have some fun sometimes, Patrick’ comment by saying, ‘We are not here, Denise, to have fun.'”

“In retrospect,” Stewart continues, “everyone, me included, finds this story hilarious. But in the moment, when the cast erupted in hysterics at my pompous declaration, I didn’t handle it well. I didn’t enjoy being laughed at. I stormed off the set and into my trailer, slamming the door.”

Stewart then details how Frakes and Spiner came to his trailer for a heart-to-heart chat.

“People respect you,” Spiner told him. “But I think you misjudged the situation here.”

Recalls Stewart: “He and Jonathan acknowledged that yes, there was too much goofing around and that it needed to be dialed back. But they also made it clear how off-putting it was — and not a case study in good leadership — for me to try to resolve the matter by lecturing and scolding the cast. I had failed to read the room, imposing RSC behavior on people accustomed to the ways of episodic television — which was, after all, what we were shooting.”

In short, he became angry because he was used to theater acting and tried to hold a tv production to theater’s standards.