Hamish and Andy are no strangers to dangerous stunts: they did sewage diving, roamed the Amazon, ate giant earthworms and worn fireworks hats on them.
But Andy Lee revealed the two exploits he and Hamish abandoned at the last second, fearing that if they tried they could easily have been killed.
Speaking with Triple M's Hot Breakfast this week, Andy recalled pulling the pin on a feat in Mexico after discovering that several people had died recently during the attempt.
"These guys were building these posts that are about 30 meters high," Andy told the radio show. "They wrapped a rope around them. They crawled to the top of the mast, tied their legs, and then fell back.
"The rope simply uncoils them completely and then the tribe stops them, even if they are at a rate of us," he said. "When they reach head-to-head height, the tribe tries to slow them down as a team and stop them."
It was not until Hamish and Andy stirred to record the feat and realized just how dangerous it was.
"There were seven deaths that year that we did not realize when we got there," Andy said. "We thought," Okay, maybe we will not do this ".
The duo traveled the world together for their TV series Gap Year, and they will be back on Channel 9 later this year with a new show called Hamish and Andy's "Perfect" Holiday.
Hamish and Andy now record their most dangerous maneuvers on the final day of filming, a tactic they created after they were forced to give up a rodeo feat a few years ago.
"We were meant to be at a rodeo on these bulls at the top of Australia," Andy told Triple M.
"There was an Indian guy who jumps on the bull before us … He goes out and is thrown out early, but his hand is caught in the reins and his whole body made a windmill while his arm was trapped.
"He untied his arm," Andy said.
"They tried to calm down the bull and get it out. They were like," You're next, Andy ".
"It was the first day of the trip," I told the guys, "If that happens to me, we will not be able to do a show." I assure you, if it was the last day, it would probably have been a different conversation. "
There is one particular feat, Hamish and Andy, who are still pursuing the two.
While filming Gap Year South America, Hamish agreed to be bitten by bullet-ants, one of the most terribly painful things a human can experience.
Hamish had to be hospitalized for eight hours after the collapse of exhaustion.