When we first saw a fish bite a cat, we thought we'd spotted a one-of-a-kind thing. We were wrong - and now we've got another angry fish vs. unprepared cat video for you, and what's more, he practically leaps out of his tank to get at him.
The fish in question is, we're assured by YouTuber 'tzmann5308', an Oscar fish, more commonly found in the wild around South America way.
Remember, South America is the same continent where piranhas come from. Something to remember there, all you fish-observing felines out there - one day, it won't be a nip you'll get, it'll be a James Cameron movie.
And for anyone now slightly scarred by this footage of fish on cat violence, here is something far more pleasant: some cats massaging things. Lovely stuff.