Not quite unfair... Hagi meant well but went kluztzy, Arashi using the riggings doesn't quite make anything lose, as long as she isn't breaking stuff. Kuroshio though, on top of eating without asking anyone, she didn't check whose pudding it was, and even apologized in an annoying manners.
And then, "Pudding is serious business"
I messed up ironing your shirt, Nee-san...Okay.You weren't burned?I ain't notice 'dat 'dis here was your pudding, Shiranui.Sorry, I went ahead and used your rigging, Aneki.As long as you get it fixed and give it back to me, then that's fine.Sorry.