Of course variations in anatomy, flexibility, coordination, and the specific configuration of the facility may require "adjustments."

Limited observation had previously suggested a possible behaviour affecting the preference for off-the-top versus from-the-bottom mounting of the roll. The suspicion occurs that those who "turn the roll" to produce a satisfactory "hanging piece" and then grab at the top to tear it off will prefer an upper exit. Those who simply grab the end and pull will find it easier if the paper exits from the bottom. This divides the population neatly into "pullers" versus "¹rollers," which may be about as firmly entrenched a division of philosophies as merits discussion.

¹ "rollers" often may also be called "danglers" with some justification.

Of course there is the subdivision of "pullers" between those who reach over with the off hand to grasp the tissue near the roll to make the final tear-off, and those who just flip the hand up under the protruding part to grasp near the roll, with the extended paper neatly folded, so that it's ready for use when the rip is accomplished. This may require more dexterity than some can master.

That, of course, brings us to the further categorizing of people:

Fold or Wad?

John