Occurred on May 25, 2013 / New Jersey, USA
Info from Licensor: "Grossly underestimated how much thrust these engines had. The first time I was worried about the timing with igniting multiple engines at once but thought I could test fire them on a pad. I had everything locked down but it broke free and the main tank split and the orbiter flew into the side of the house. Sad day it was, learned some hard lessons, but I know it will get off the pad."