Using a 300-ton hydraulic press to crush a block of 10,000 Lego bricks

The really fun stuff starts at about 8 minutes in, but, really, if you're going to watch that, why not watch the whole thing? 

AND: What kind of person laboriously assembles 10,000 Lego bricks into a single block for the purpose of seeing how it will respond to pressure from a 300-ton hydraulic press? 

They're having so much FUN doing this.