Bernie "The Bruiser" Madoff got into a prison-yard tussle with a fellow inmate over — of all things — the stock market, eyewitnesses told The New York Post.
And, by inmates' accounts, the 71-year-old Ponzi schemer came out the winner.
Madoff, serving 150 years at the Butner, N.C., federal prison, was heard last week getting into a heated debate over the state of the market with another senior-citizen jailbird.
The shouting match got so heated that the inmate pushed Madoff, who shoved back harder with both hands, causing his attacker to stumble.
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As the attacker tried to stand up straight, Madoff hovered over him red-faced and glaring, eyewitnesses said.
The stunned attacker went chicken and took off — allowing Madoff to collect some "cred" among his fellow prisoners.
"I didn't think Bernie had it in him. He got the best of him; he was really aggressive, and the other guy was in shock that he fought back," an inmate said.
The shoving match occurred near a ball field at the lockup in front of about 20 inmates during a rare time
Prisoners interviewed by The Post said this was the first known physical altercation at the slammer for Madoff — who paid a consultant for a crash course in prison culture and survival tips before he was locked up.