After being raided 3 times in the same night by the same team we were forced to up our defenses and rebuild. We quickly gathered up all the wood in the land we could find and repaired our walls! We then began to make our wall surrounding our courtyard 2 walls thick. We know this does not stop people from getting in, but it does keep them from leaving :-).
We then spent The next 1-2 hours collecting wolves and zombies from all over the map and bringing them home. This became our new home security system. It functions just like a security alarm in the sense that when someone gets near it gets VERY loud outside alerting us that someone is coming!