Toilet paper roll over or under debate solved at our house.
It's no longer debated
Not because one side or the other was right or wrong. It was more logical than that.
It was because over or under didn't stop Tralfaz from unrolling the whole thing to get to the cardboard center. He could do it in seconds too. Like walk to one end of the house and come back and there he is wagging his tail with the cardboard center in "let's play fetch" mode.
Now he sees the roll sitting vertically and just stares as if the say "howdafuk am I s'posed to work wit dat?"