Another plant ID please (Berberis)

Would they keep the deer away?

My memory of berberis - When I was a nipper we'd play in the local park and the challenge was to hide in the bushes (mostly berberis and other unpleasant stuff) until the Parkie had locked the gates and gone home. We'd then play in the park until we wanted to leave and either climb the railings (spikes on top) or, in my case, wriggle out under the railings through a little tunnel we'd dug.
Fortunately, our accidents were minor as nobody would have known where we were or been able to get in to help!

Beware trainspotters,  they're a strange breed.  I know I married one.  I've managed to tame him a bit nowadays.