I saw this report of a study about octopuses on Twitter. Apparently female octopuses throw silt, shells and rocks at male octopuses when they don't appreciate male octopuses attempts at courtship!
twitter.com/weatherindia/status/1438452494275948544?s=21
I knew octopuses are meant to be quite clever but I did not realise that they could do this.
(Please don't tell me the plural of octopus is octopi. That's not correct as the word is Greek, not Latin, in origin so if we were being pedantic it would be octopodes. As we're not, octopus follows the usual rules for plurals in English