Another reason I don't believe Cetaceans should be kept in captivity. Unlike most fish, even Sand Tiger Sharks (they are in every aquarium) Cetaceans are oceanic roamers. Sand Tigers will occupy the same reef or wreck for decades. Not Cetaceans. Think how bored and unstimulated the Whale must have been. I'm sure it wasn't a deliberate attack, probably just playing but didn't know its own strength.