A New York University professor, author and public speaker said he was locked out of his X account after he turned down an invitation to meet with Elon Musk.

“A mutual friend reached out and said Elon feels ‘unfairly attacked,’ by me, and wants to meet,” Galloway posted on Threads. “I declined.”

He said that two days later he could no longer access his X account, which has over half-a-million followers.

One of Galloway most recent on X was about Musk on July 27, was on a Reuters investigation which said Tesla created a secret team to suppress complaints about vehicles’ driving range.

Writing: “Tesla intentionally gave drivers rosy driving range projections, leaving many stranded,” Galloway posted. “BUT you should totally bank with X.”

His sarcastic comment refers to Musk’s plans to turn the platform formerly known as Twitter into an “everything app.”

Musk said on July 25 that X would add features to give users “the ability to conduct your entire financial world.

Now, on the rival app Threads, Galloway has upped his criticism of Musk, posting a thread Wednesday in which he joked that Musk “banished me from the twitter Hamlet” and “Don King has agreed to host a battle to the death before a Taylor Swift concert.

“Elon would have been a legend … if he hadn’t started tweeting,” he said.

And he joked about Palo Alto police apprehending a man “high on ketamine, and wanting to fight,” attaching a picture of a shirtless Musk, in reference to the billionaire taunting Mark Zuckerberg.

CALIFORNIA: Tesla Owners Sue Over Fraudulent Range Claim