Blackbeard was just about the most ruthless pirate ever. His management style was unique, to say the least. If one of his crew misbehaved, he would drop them in a large tank full of jellyfish and delight as the jewels he kept at the bottom of the tank reflected different colors into the ballet of agony that played out before him. According to the infamous pirate's diaries, it really calmed his nerves, too. Wow. Well, while we don't recommend all that for your office, there is something we can take from this story: colorful jellyfish are relaxing.