In the results show for tonight’s Britain’s Got Talent live semi-final, Dec walked over to the judging panel to announce that the voting had closed.
But as he did, David could be seen throwing confetti at the presenter and appeared to be far from impressed.
Dec turned to the judge and jokingly warned him: “Stop it, stop it.
“I’m going to smash your face it.
“I’ve been calm all week but you’re really getting on my pip.”
He then turned to the camera and told viewers at home: “I think we should go to a commercial break.
“While the votes are counted and verified, I’m going to take David over my knee and let’s see what happens.”
David was more than happy to oblige as he stood up and leaned over the judge’s desk.
Dec then proceeded to spank David which had the audience in hysterics.
The exchange was of course all in jest and came after viewers spotted a hilarious blunder during Mandy Muden’s magic act.
The magician took to the stage in a leopard print wrap dress but as she walked towards the judges to begin her performance, her stunt double could be seen.
They were accidentally caught on stage carrying his wig, shows and handbag.
He was clearly trying to make a sneaky exit but unfortunately the cameras caught him leaving.
It was just one of many gaffes on Britain’s Got Talent this week.
Many of those tuning into the ITV series were quick to comment on the blunder.
“Don’t think they were supposed to show the stunt man taking his wig off on Mandy’s act #BritainsGotTalent,” one viewer wrote.
Another added: “Was… was that her bald body double shuffling off stage with his blonde wig in his hand like a s**t hamburlar.”
“Were we supposed to see the body double stumbling off stage, wig in hand #bgt #BGT2018 #BritainsGotTalent #BGTSemiFinals #BGTSemiFinald #bgtlive,” someone else wrote.
A fourth continued: “Seriously what is it with the crew members ruining everything?”
Britain’s Got Talent 2018 Final airs on Sunday on ITV at 7.30pm.
