Identify this self seeded plant please

Potty Lottie

hi does anyone know what this might be? Very prickly with a little yellow flower. I need to move it anyway as in wrong place but keen to not replant if a pest! Thank you, Potty Lottie. 

fidgetbones

Can you post a photo using the mountain and sun icon?

Potty Lottie

 

Potty Lottie

Can you see the photo above? I did take a photo with first post but for some reason didn’t upload! PL

Potty Lottie

Ignore the foot!

Biglad

It looks like a homo sapien? 

Biglad

Sorry - couldn't resist!

Paidpnuts

Looks a bit like mahonia.

JennyJ

Berberis darwinii?

Potty Lottie

Thanks folks I think it is Berberis Darwinii. Having looked it up I have decided not to re-plant as big and invasive (and very hurty prickles)!