Vortex Cannon in your face!

Ok so this is cool, the guys on Bang Goes the Theory created a super bad ass vortex cannon and decided to knock some stuff down with it. I could have done without the stupid set up though...

"according to legend, a really good blast of air should bring down a house of straw" ummm what legend would that be? The story of the 3 little pigs? I don't think that counts as a legend. Also I'm pretty sure even pigs are smart enough to use mortar when building a house of bricks.