“He filmed every moment of last Friday’s programme and right to the end was happy, healthy and his usual calm, lovely self.
“But he was suddenly taken ill with violet, unstoppable seizures and despite everything that our wonderful vets could do he slipped quietly away with no pain or suffering and is now buried in the garden with lots of tennis balls.
“Rest now old friend. See you in the sweet bye and bye.” (sic)
Last year on Twitter, Monty revealed that Nigel had undergone surgery to remove growths in his mouth.