Penn Jillette, the Greenfield native and larger half of the magic duo Penn & Taller, says that Donald Trump made "racially insensitive' comments during the filming of "Celebrity Apprentice" in 2012, but he won't spill the beans.

Trump's conduct during the taping of "The Apprentice" reality TV series have come under renewed interest with the publication of the book "Unhinged," by former "Apprentice" contestant and White House staffer Omarose Manigault-Newman.

Jillette said he was in the room when Trump, then a popular reality TV star, made inappropriate remarks.

"He would say racially insensitive things that made me uncomfortable. I don't think he ever said anything in that room like "African-Americans are inferior" or anything about rape or grabbing women, but of those two hours every other day in a room with him, every ten minutes was fingernails on chalkboard," Jillette told Vulture.

However, Jillette feels it would be morally wrong to get into specifics, adding he is not the best source for exact comments.

"If Donald Trump had not become president, I would tell you all the stories. But the stakes are now high and I am an unreliable narrator," Jillette said "What I do, as much as anything, is I'm a storyteller. And storytellers are liars. So I can emotionally tell you things that happened racially, sexually, and that showed stupidity and lack of compassion when I was in the room with Donald Trump and I guarantee you that I will get details wrong. I would not feel comfortable talking about what I felt I saw in that room."

He added, "If he hadn't become president, I would be telling stories all day long. And if someone were to say, 'Penn didn't get that exactly right,' you'd go 'Who cares?'"

While he is not a fan of Trump as president, Jillette said he enjoyed hearing him talk.

"I like people when they don't have filters... Which means if I'm in a room with Trump I'm happy to hear him talk. But I'm also happy to hear Charlie Manson talk," he said.