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Bureau of Interior Conditions
Division of Environmental Threats & Hazards

Report BIC-ETH-0105

Status: Unresolvable

Recurrence report — toilet tissue, localized saturation event (sustained)
SubjectOne (1) two-ply residential toilet tissue roll, partially consumed
Hazard zoneThree to four sheets, localized moisture, leading edge of roll
Origin of moistureUnconfirmed
PatternSubject re-encounters same zone across discrete usage events
Mean inter-encounter intervalApproximately 5.2 hours

One (1) standard residential toilet tissue roll, two-ply, partially consumed. Mounted in primary use position. The roll exhibits a localized zone of moisture across an estimated band of three to four sheets, of unconfirmed origin. The zone does not propagate. It also does not resolve.


This is not a threat assessment. The roll is not exhibiting intent (compare BIC-ETH-0089, produce, apple, misshapen; BIC-ETH-0064, banana, overripe). The reportable event is the subject's repeated return to the same zone.


The Bureau has reconstructed the following encounter sequence from subject testimony, observed time-of-use data, and the rotational state of the roll at field inspection.

E1  Initial discovery. Brief examination. Hypothesis advanced (splash, condensation, prior occupant). Roll rotated forward by approximately one-quarter turn. Tissue drawn from a dry segment.

E2  ~3 hours later. Re-encounter. Subject had not retained memory of E1. Same zone presented at the leading edge. Same rotation applied.

E3  ~7 hours later. Re-encounter. Subject now recalls E1 and E2. No further hypothesis advanced. Rotation applied with measured patience.

E4  ~5 hours later. Re-encounter. Subject pauses. Subject considers replacing the roll. Subject does not replace the roll.

E5  ~9 hours later. Re-encounter. Rotation applied without examination.

E6  ~2 hours later. Re-encounter. Subject reports a brief sensation that the roll has rotated back during the intervening period. The Bureau finds no supporting evidence.

The mean inter-encounter interval, calculated across the documented period, is approximately 5.2 hours. The encounter sequence is expected to continue until the roll is exhausted or replaced. The Bureau has no projection on which.


The subject's response sequence has degraded predictably:

1  Curiosity (E1).

2  Mild confusion (E2).

3  Recognition (E3).

4  Consideration of intervention (E4).

5  Acceptance (E5 onward).

By E5, the subject no longer examines the zone. The rotation is now performed as part of the use sequence, with the same tactile economy as flushing.


The Bureau notes that intervention — replacement of the roll — is available to the subject at every encounter. It has not been undertaken.

Subject testimony, when pressed, returns variations of the following: the roll is mostly fine; there are still a lot of sheets left; I will deal with it next time. None of these statements are inaccurate. None of them result in the roll being replaced.

The Bureau has classified this pattern under BIC-OPS-SOP-0046 (domestic sprint review) as an open item, where it has remained for some time.


The roll is not unsanitary. The roll is not damaged. The roll is not, by any reasonable metric, a problem. The subject's continued re-encounter with the same three-to-four-sheet zone, multiple times per day, across an indefinite period, also is not a problem. It is fragile. It is damp. It is the use of the roll.

This filing will close when the roll is exhausted. The Bureau anticipates the next roll will be unremarkable.