"EXT" wrote in message
anews.com...

One could also obstruct access with a hedge of blackberries or other thorned
bushes.

Yes, how about Hawthorn, they have 1 to 2" long razor sharp spikes grow out
from the branches, they can rip the flesh or penetrate deep. Or a Japanese
Angelica which are lined with sharp thorns all up the trunks, stems and even
the joints in the compound leaves, a brush up against a branch will take the
skin off.


Holly is pretty effective also.