Sure you want to know more!
You are not the only one who gets the last 3 cm of toilet paper because those who with all love in earth share house with you.
People are selfish…
and they simply think you will believe in their inocence or good will when leaving you the last centimeters of toilet paper, so you will use it to your satisfaction — or cleaness, may be appropriate.
… “tous pour un, un pour tous” — that means “all for one, one for all“
You can start by calling a meeting. After you all sit for that, you start solemn. Dear mosketeers… and so on. Set the rules. 3 cm for all (use French – “pour tous” or Latin “omnibus”) it shall sound more authoritative!
I’ll come up with some ideas for counting it up and measuring, wait on.