I had to fight my desire to run, or to look about me for attackers.
From directly behind would be the only safe place for an attacker to approach.
But this is certainly not the case for an attacker with perfect knowledge.
Later she would claim to have mistaken him for an attacker.
When the Centaur was dead he turned, looking for other attackers.
They are fairly complex in shape, designed to make access for a possible attacker more difficult.
Always, if there is opportunity for an attacker to, at his leisure, attack, this isn't going to work.
According to friends, she always kept a substantial amount of cash, and that might have made her a target for an attacker.
Inside the walls, things might not be so easy for an attacker who did not know the city.
As the result of all this, it was often difficult for attackers to reach the top of the wall.