I've seen more than a few brick gate posts on semis borked by twats nailing or screwing into the brick. Annoying and totally unnecessary.
One S. London estate agency in particular used steel strapping back in the '80s (like a giant jubilee clip tightened with a ratcheting device) which was sometimes even worse than nails if your brickwork was old and friable, because the straps were always over-tightened, often causing the faces to spall off of the bricks.
It also wasn't too healthy if you caught yourself on the strapping, as it was quite sharp-edged.