I don't know why either?
But if you think that's bad it could be worse. In 1976, Middlemist and colleagues carried out an experiment in which they measured the time to onset and the duration of urination of men in toilets at a college. The ''purpose'' of the research was to study the effect of personal space on a measure of physiological arousal (urination times).
The students were observed while alone or with a confederate of the experimenter, who stood at the next stall or at a more distant stall in the restroom. The presence and closeness of the confederate did have the effect of delaying urination and shortening the duration of urination. The situation is one that men experience on a regular basis, however one can question whether the invasion of privacy was justified.
_____________________________________________________________________________________________________________________Whether you squat in an alley or sittin' on a porcelain throne, don't really change the moment, now do it?
~ Omar, The Wire