Over or under?

Alright lets get all philosophical. Are you a over or under person?
I'm an over person. My June is an under person.
It drives me mad when she puts the dunny paper under.
So I'm the one who changes the roll when done so it's in the over position. And she can't be bothered to change it so I get my way.
Here is the link to wikipeadia that says more on the subject.