He didn’t care very much about the markets when he was allegedly investing tens of billions of dollars, but safely ensconced behind bars, there’s apparently nothing that makes Bernard Madoff angrier.

The latest bit of gossip from the New York Post’s Butner Federal Correction Complex bureau is that the Ponzi scheme mastermind got into a shoving match with a fellow inmate last week. And he won!

Following a heated argument over the state of the markets, another inmate—and fellow senior citizen—gave Bernie a shove. And Madoff shoved back, hard, according to the Post, sending his nemesis to the ground.

Madoff then reportedly stood over the inmate, “red-faced and glaring,” causing his attacker to head off with his tail between his leg. Fellow inmates told the Post that the fight, near a ballfield with an audience of about 20 other prisoners, could earn Madoff some much-needed “cred.”

“I didn’t think Bernie had it in him,” one fellow inmate told the Post.

Despite his fury, Madoff and his battle-mate quickly mended things, and were seen spending time together the very next day.