Higgs Boson wrote:

High on the list of things I really didn't need to know is how
engineers test a flush toilet's "load". According to Popular
Mechanics, their unit is a condom full of 50 grams of miso
paste. "Engineers flush six units to simulate a typical man's
demands.

See, that's the problem.

A condom is not the proper thing to use to simulate a log of **** in a
toilet. These "condom logs" will have very little friction with the
toilet bowl, and between each other.