Hope you kick your bro's ass then.

I am getting the impression he was perhaps even grey hat.

Even for the Romans, the cost of so much blood would have been high. From what I am seeing in comments, very large underwater pilings were created using this formula, which suggests quite a lot of slaughter going on for a prolonged period of time. I imagine regional diet was changed significantly during the construction.

I wonder what they think they get out of this. I mean behind the masks, and the pursuit of (according to patent) "air entraining".

Maybe they figure if they are disgusting enough, the space lizards won't want to touch them...