He's known for letting loose around his fellow judges.
Yet even David Walliams was left shocked when he dropped his trousers during Thursday's episode of Britain's Got More Talent, only for Amanda Holden reach up and pull down his underwear.
As the audience squealed in horror at the scenes, a morose Simon Cowell sat back with his head in his hands as Alesha Dixon screamed 'David, no!'
The hilarious antics came after show host Stephen Mulhern reminded the group of last year's auditions, when David unexpectedly undid his trousers whilst the judges were dancing around.
Not one to shy away from the embarrassing moment, David decided to recreate it on Thursday, attempting to crawl seductively across the desk before repeating the move in front of Simon's face.
Yet he got more than he bargained with as Amanda was quick to jump up and grab his underwear, although luckily was not successful in pulling them all the way down.
The foursome were no doubt pleased to let loose and have a laugh after being left irate during the main show when entertainer Marty Putz pelted them with toilet paper and fired a water cannon at them.
Amanda was particularly annoyed, with the 47-year-old judge so angry about the surprise soaking that she stormed away from the panel along with Alesha, with the girls taking cover and attempting to hide from the stream of water.
Clearly still angry after his act came to an end, Amanda then stormed the stage to throw an entire bottle of water over Marty as he cowered away.
The ladies then stood clutching towels and looking unimpressed by the act, revealing that they couldn't sit back down because their seats were wet.
Clearly irritated by the soaking, Alesha remarked about the act: 'I had a good flush!' while Amanda gestured at her sodden gown, claiming 'I'm going to send you the dry cleaning bill!'
Although David and Simon had also been soaked and later covered in toilet paper, they took the entire thing in good spirits, with Simon quipping 'this isn't what i signed up for', yet revealing that his son Eric would probbaly like the act at his birthday party.
Meanwhile, David reasoned: 'I'm a big kid at heart and I think the kids who watch the show will love it!'
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