Lots of animals do that though. Butterflies purposely seek out fermented fruit to get drunk, some monkeys in the Caribbean drink leftover cocktails from tourists specifically to get wasted, reindeer get high on shrooms. If dolphins realize it feels good to get high off pufferfish venom, why wouldn’t they keep doing it? Like yeah they’re jerks, but they can’t comprehend that they’re hurting the pufferfish.