SIR David Jason was left open-mouthed as Jay Blades told him to 'do one' and stormed off camera after a string of digs during an episode of David and Jay's Touring Toolshed.
The BBC show sees Sir David Jason and The Repair Shop presenter as they travel across the country with a mobile tool shop.
In the latest episode, Jay became the target of Sir David's relentless teasing.
The whole situation unfolded when Jay found himself enrolled in a barrel-making training course, but Sir David couldn't resist mocking Jay's attempts at crafting barrels as he watched.
The Only Fools and Horses actor teased: "Just remember we haven't got three days for this programme..."
Jay playfully hit back: "No, it's not gonna fall in! Listen, less of the verbal over there, alright?"
Read more on The Repair Shop
Bu Sir David couldn't help but mess with Jay, taunting him, saying: "You should've been way down with your rings on the barrel by this time."
A barrel-making professional then had to step in and help Jay, which fuelled Sir David to tease him even more.
"Oh, you're having the help from the professional," the actor said.
Once the barrel was finished, Sir David called it "wobbly" and told Jay to "pick it up."
Most read in TV
He chimed in again with his own two cents, telling Jay to make sure to use his thumb to make the item sturdy.
The Repair Shop presenter then snapped back: "I'll tell you where I'll put my thumb in a minute if you don't stop talking."
The barrel expert gave Jay a four out of 10 for his attempt.
Jay then playfully tossed his apron aside and told the expert and Sir David that he'd had it with their teasing.
"The two of you can do one, I've had enough. I've had enough," Jay joked as he pretended to stormed off-camera.
As soon as Jay was gone, Sir David said: "To be honest, he didn't do too bad, did he?"
You can watch episodes of David and Jay's Travelling Tool Shop on BBC iPlayer