A farmer in Pinner has warned dog owners their cherished pets could be shot if they run amok on his land - after a ewe was mauled by two hounds.
Peter Gurney, who previously managed Pinner Park Farm and is now stockman there, is disgusted dog walkers stormed through the farm two weeks ago and sat by as their dogs killed the ewe.
So much so he is reminding passers-by that he is fully entitled to shoot at dogs let loose on the land.
He said: "This total disregard to all the signs about dogs being on leads and under control will lead to someone's cherished dog being shot - as is our right.
"The owners of animals should be reminded that in fields or on footpaths they could be prosecuted for neglect in their duty of controlling their pets."
The company that own the farm, Hall and Son Ltd, have spent hundreds of pounds on signs after Harrow Council instructed them to and Mr Gurney is upset people continue to ignore them.
The 61-year-old added: "While we want people to enjoy the farm they seem to think it's theirs and they need to remember this is a business.
"We have had to put up numerous signs, barbed wire fences and are even looking at electrified fences now - it's absolute lunacy.
"We put up signs saying don't feed the animals yet we see people feeding the ponies Polo's and all sorts - they don't realize the damage this does to these animals.
"We've had kids running around in the field with the bulls and now this - it's ridiculous and people should use their common sense."
Pinner Park Farm had been free of sheep and ewe's since 2000 and only recently decided to bring more on to the land on George V Avenue, Pinner.
But following the killing of the ewe in mid-August Mr Gurney said they would have to think carefully about buying any more.
He said: "This ewe was just one of 12 on the entire farm and at £300 each its death is a big blow.
"People need to take responsibility for their animals because this farm is not a playground and it is not a park."