A fixer used by top TV stars has lifted the lid on stars’ furious off-screen rows, near-fatal crashes, ‘demanding’ antics and how viewers were tricked with faked scenes made to look dangerous.

Digby Greenhalgh, co-owner of Explore Indochina, has guided stars including Jeremy Clarkson, Gordon Ramsay and Bear Grylls on motorcycle trips in South East Asia.

Now he has opened up about his own experiences - including witnessing Clarkson flying into a vicious foul-mouthed tirade and spitting at a colleague.

The row happened during filming for the Top Gear Vietnam special in October 2008 - seven years before he was sacked by the BBC for punching a colleague.

In a blog post, Mr Greenhalgh, described the moment the presenter confronted executive producer and longtime friend Andy Wilman in a hotel foyer filming at a beach club finished for the day and they returned to the hotel without him.