McAfee said he faked a heart attack in Guatemala to give his lawyer enough time to file motions keeping him from returning to Belize.
"Immediately after, I got well," he deadpanned.
McAfee's expulsion from Guatemala marked the last chapter in a strange, month long odyssey to avoid police questioning about the November killing of American expatriate Gregory Viant Faull, who lived a couple of houses down from McAfee's compound on Ambergris Caye, off Belize's Caribbean coast.
McAfee has acknowledged that his dogs were bothersome and that Faull had complained about them days before some of the dogs were poisoned. The two did not get along, he said.
"He hated my dogs. I was not fond of him. I wasn't fond of any of my neighbors. I'm not fond of most people who drink." he said, adding most people on the island thought he was a "weirdo" because he doesn't drink.
By Thursday afternoon, dozens of reporters and tourists were camped on a palm-tree lined street outside historic South Beach hotels listening eagerly as McAfee's comments strayed from his life on the lam to random topics and amusing one-liners.
"I don't think he's nuts at all. I think he's a smart guy with a lot of lawyers," said tourist Andy Ashton.
At one pointed he chided reporters for being rude to each other, then turned on TV viewers: "You people at home seriously what are you doing? You're living your lives through other people, through me."
He was in hiding in Belize for weeks after police pronounced him a person of interest in the killing. Belizean authorities have urged him to show up for questioning, but have not lodged any formal charges against him. McAfee has said he feared he would be killed if he turned himself in to Belizean authorities.
Belize's prime minister, Dean Barrow, has expressed doubts about McAfee's mental state, saying: "I don't want to be unkind to the gentleman, but I believe he is extremely paranoid, even bonkers."
McAfee is an acknowledged practical joker who has dabbled in yoga, ultra-light aircraft and the production of herbal medications. He has led an eccentric life since he sold his stake in the software company named after him in the early 1990s and moved to Belize about three years ago to lower his taxes.
He told The New York Times in 2009 that he had lost all but $4 million of his $100 million fortune in the U.S. financial crisis. However, a story on the Gizmodo website quoted him as describing that claim as "not very accurate at all."