Quote Originally Posted by Daveybaby
What's even more annoying is that the enemy AI doesnt protects its siege machines, just sends them way out ahead on their own to attack your walls, making them vulnerable to a quick sally by your knights.

So i've got to impose yet another rule on myself (i.e. to not do that), to at least try and make the game a bit challenging.
Why? Historically, besieged people used to rush to destroy the only things that could have taken down their best defense quickly. History is full of overconfident/stupid people who don't guard their siege engines well, too.