Journal-Times, Racine, WI, 1/18/20:
Mexico City subway says pee causes escalator breakdowns
Travelers on the Mexico City subway system often blame authorities for broken-down escalators at subway stops, but Metro officials have another explanation: vast amounts of pee.
Solution, short of providing rest rooms, is enforcement. That so many people are able to perform this bodily function on the escalators, not only leading to these mechanical problems but also issues of exposure, is cause for concern.