The Water Cannons and Vacuum Blocks are fun, but they don't affect buildings. That's stupid. It really ruins the fun when you try to blow down a house with a 500 power Water Cannon, that doesn't work, so then you put a peasant in front of it and the peasant does the job because it's blown into it. I think houses should be able to move (or break) after a 500 power burst of water hits it, or when a 50 powered Vacuum Block sucks it up. I'm quite sure these impacts have the power of a tornado, and tornadoes rip houses up, right?