Experts suspect that a female orca they call White Gladis suffered a "critical moment of agony" — a collision with a boat or entrapment during illegal fishing — that flipped a behavioral switch. "That traumatized orca is the one that started this behavior of physical contact with the boat," López Fernandez said.

https://www.livescience.com/animals/orcas/orcas-have-sunk-3-boats-in-europe-and-appear-to-be-teaching-others-to-do-the-same-but-why

Marine honney badgers also don't care!