About This File
This is my first game modification so install this at your own risk (lol). I have played with it around 100 in game days and haven't had any trouble.
This change doesn't let pengulls attack your walls.
The downloaded file should go into C:\Program Files (x86)\Steam\steamapps\common\dont_starve\data\scripts\brains and replace the original penguinbrain.lua
You should backup the original file just in case.
I haven't tested this with DLCs but it should work.