I hate those huge rolls that police you on how many sheets you can have - and then shoot back round so that you can't find the end any more...
And the STUUUUUUPIIIIID dispensers we have at our office!! They have an arrangement whereby the next roll is stacked above the first & should fall down into place when the first is removed. Fine, except you have to rip & crush the cardboard middle of the first roll in order to force it out of the little hole at the bottom before you can get at the second roll. AND they seem to have changed the guage of the middles & so now the upper roll falls down prematurely and so the lower roll won't turn properly. AND they have that manky stuff where you can't start the roll off neatly - you end up having to dig about a centimetre into the thing before you can get the a continuous sheet.
AND - they've made our loos multi-cultural - ie men & women use same bog. That's OK in theory, but I don't remember quite so many skid-marks, pubes & wet floors when we had a women-only toilet!!!