Letter box

One day, I had a long walk, and came across this letter box. I did a double take before I took the photo. Then I was intriqued by the entrance or rather the lack of it.  It was an unruly bush. I couldn't see anything beyond the bush and the trees.

I suppose you don't have to be a rocket scientist to guess why the neighbours don't venture into the compound to tell the owner to keep his garden neat and tidy like the rest of them.