The Donald - Our Era's Poster Child
"David Milne, 46, has been at loggerheads with the billionaire after refusing to sell up to him.
Without warning, Trump's contractors erected the new boundary and planted dozens of trees then sent an invoice for £2820 - half of the total bill.
But David said: "There is no way I'm going to pay it. As far as I'm concerned it's just another attempt to intimidate and bully me.
"But it's not going to work. I'm not paying any attention to it at all."
Trump is building the "best golf course in the world" on the Menie Estate in Balmedie, Aberdeenshire.
The American has permission to create two championship courses, a clubhouse, a hotel and 950 houses.
And he's decided he also needs adjoining land and has applied for planning permission for properties he doesn't own.
This includes David's home at Hermit Point, where the health and safety adviser has lived with wife Moira for almost 20 years.
Trump has been caught on camera branding the house "ugly" but the couple have refused to sell up to him because they don't want to leave their idyllic home.
David said: "I could not believe it when the bill arrived. I priced the materials and I could put up the whole fence on my own for about £800.
"It's made from the cheapest stuff available but that's the kind of standard we've come to expect from Mr Trump and his organisation."
The resort is due to open next summer but David reckons harsh weather has left it behind schedule.
He said: "I think they've underestimated the Scottish weather."
Nobody at the Trump Organisation was available for comment yesterday."
watch 'Donald Trump's Golf War' here