Poop is actually vital to have in your vocabulary, and the other courses have neglected it. Thumbs up, Duo.
People have died being unable to communicate the presence of fecal matter?
Okay, that makes sense.
why isn't this latrina stercum habet?
Because stercus, despite how it looks, is actually a (third declension) neuter noun. See here: https://en.wiktionary.org/wiki/stercus .
"You are correct"