Aaah, childhood trauma.

"Hey, itīs an animated movie about bunnies. Perfect for kids!"

As I kid I endured god knows how much trauma from this film. I watched a lot of weird stuff as a wee tyke, and of course kids movies were a little more advanced at times in the late 70s/early 80s, but I think this movie pushes the limits quite a bit. Plague Dogs maybe comes in a close second.