Demolition is an exact science.

This time it went exactly wrong:

Luckily, no one was injured, which is amazing considering how close everyone was to the lines coming down. Look at this video. Those are children on the screen (at least they look like kids to me):

Hot Air Pundit had these pics of the fall:

Again, I don’t know how everyone got out without an injury.  Everyone except the demo company and their insurance agency.