Jeffrey Dahmer constantly terrorized inmates and correction officers with “sick, flesh-eating humor,” his former minister told The New York Post on Wednesday.

“If he saw a guard that was nervous and standing near enough to hear him, he would say, ‘I bite,’” said Pastor Roy Ratcliff. “Usually the guard would jump away and that would make Jeff laugh.”

The 68-year-old minister said Jeffrey Dahmer — who confessed to killing 17 men and boys and dismembering and eating some of them — taunted those around him by putting a sign on the wall of his cell that read, “Cannibals Anonymous Meeting Tonight.”

“He sort of played with his persona to exaggerate it and make people more fearful. This was just his way — a morbid humor to deal with his hopeless situation,” Ratcliff said of Jeffrey Dammer.

Jeffrey Dahmer’s jailhouse murderer explains why he killed the infamous cannibal http://t.co/ZBV175xGJD pic.twitter.com/E61CH6cDPi

— Salon.com (@Salon) April 29, 2015

At the time of Jeffrey Dahmer‘s arrest, the killer had body parts in his freezor, although he told Ratcliff that he only ate the bicep of one boy.

“However, when he was arrested and they found body parts in the freezer — a heart and a liver — he told me that he was ‘saving them to eat for later,’” said Ratcliff.

Inmate who killed Jeffrey Dahmer reveals why he murdered the serial killer: http://t.co/kJgfin1MgB pic.twitter.com/v475CInPBa

— WGN TV News (@WGNNews) April 29, 2015

Jeffrey Dahmer was bludgeoned to death by fellow convict Christopher Scarver, 45, in 1994, apparently because he’d had enough of the killer’s taunting.

Scarver, 45, told the New York Post on Sunday Jeffrey Dahmer would fashion severed limbs out of prison food, put ketchup on them to simulate blood and place them around the prison to scare fellow inmates and correction officers.