I think it was because no one knew the answer. It looks a bit like the thorned seedlings one sometimes gets from thornless Blackberry plants, except they are usually more red in the leaf and stem.

The stems look like Bramble, but the leaf is not

Whatever it is, it looks vicious! Make a good security hedge.

A bit of a long shoot, A wild rose ?????

There's no way that's a rose leaf! Dunno what it is though... Are those small yellow clusters of flowers behind the leaf part of the same plant?

Nasty looking thorns Lady Essex. I would favour OB's suggestion Thornless Oregon blackberry turned vicious. One for the green bin in our garden.

I looked at it too......... looks nasty.......

Beattie. No, the flowers are from another plant.
And yes everybody it is very spiteful.
Think I will dig it up anyway as likes attacking me lol.

Thanks All :-)