Evaluation: How to load quad and vertical dispensers

Investigator Phyllis Stanley writes: “After reviewing every available training video, twice, I recommend this above all other sets of English-language instructions for how to load quad and vertical toilet paper dispensers”:

UPDATE: Stanley writes: “Here is the best of the Spanish-language videos on the subject. The sub-optimal sound quality and  excessive length are, in my view and those of my colleagues, cause for some concern. We worry that these imperfections might lead to inconsistencies across different facilities in the loading of quad and vertical toilet paper dispensers”:

BONUS (unrelated, in Chinese): How to install a blind rivet nut: