Furuta and his s/o prank war?

How is this not canon?

– Furuta strikes first. Probably using his kagune to trip them down the stairs so that they fall into his arms.

– s/o then switches all his underwear with lingerie.

– this does not bother him.

– s/o then puts cockroach cutouts in a lampshade in his office. Furuta is appalled.

– so he puts googly eyes on all of their refrigerator items.

– his s/o takes it to a new level by covering his soap with clear nail polish. He becomes very confused in the shower until his s/o pops their head int he shower and asks how he’s doing with an utterly evil smile. 

– he’s actually impressed. their punishment is joining him for the remainder of his shower.