Working Out With The Rock Made Jack Whitehall Pee Himself

"I did a film with The Rock, yes," Whitehall said. "He's the best man I've ever met... He's amazing, he's the kindest guy. He has this gym that he travels with, which I got to go into, which I felt very honored to be invited into the 'Iron Paradise.'"

View this post on Instagram #Repost @therock with @get_repost On set of our DISNEYS JUNGLE CRUISE and I made friends with a big ol hungry Anaconda. While my brave co-star and good buddy @jackwhitehall did his best to smile thru his fear of snakes. Good times with the animals of the Amazon. Next, me and Jack will swim with the piranhas.. completely against his will. The adventure of the lifetime. #AllAboard #Disney #JUNGLECRUISE A post shared by Jack Whitehall (@jackwhitehall) on Aug 30, 2018 at 6:41am PDT

"One day on set he was like, 'do you work out?' And I was like, 'yep, yep.' Old 'Quadzilla' here! And then he invited me round to the gym, and I went around, and these machines are enormous. He had taken all of the weights off all of the machines, so it was just the bars. Even then I was like, 'I don't think I can manage those.' So I went in the corner and got onto an exercise bike, and popped in an audiobook. And he's in the other corner with like a chain around his neck, and he's crunching all of this iron and listening to rap music. And I'm over there, like, on a Call the Midwife [bike], pootling along!"

View this post on Instagram My British voice is beautiful & sexy. Their Rock voice is repugnant & nauseating. The cast that trains together.. stays together. And the cast that talks smack to each other.. become LIFERS. Just your typical day in the IRON PARADISE with my JUNGLE CRUISE ohana, the relentlessly bad ass @jackwhitehall and the Incomparable One herself, Emily Blunt. Now bring it on in for a nice, long, sweaty, hug that goes on for way too long making it beautifully weird, while wearing 50lb chains. #MaryPoppinsAndMaui #JackIsABeast #IronParadise #JungleCruiseOhana #Lifers A post shared by therock (@therock) on Sep 3, 2018 at 4:59pm PDT

The Rock shared the interview clip on Twitter, adding some extra commentary which makes the story even better: "Funny stuff," he said. "True story though. My Jungle Cruise co-star @jackwhitehall's intro to my infamous Iron Paradise. (Jack excluded the part where he pee'd on himself a lil' during his first rep)."

Funny stuff. True story though. My Jungle Cruise co-star @jackwhitehall s intro into my infamous Iron Paradise. (Jack excluded the part where he peed on himself a lil during his first rep) @TheGNShow https://t.co/LFvjRXcvfZ Dwayne Johnson (@TheRock)

Whitehall shouldn't be embarrassed, though: losing control like that can happen to even the most seasoned of athletes when they push themselves too hard. Just last week, strongman Eddie Hall , a previous winner of the World's Strongest Man title, soiled himself and blacked out while attempting to leg press 2,200 pounds.