5 minute snippets. Sorry no time to cite all sources atm!
Urinalysis pre 50’s used to be doctor smells or tastes your pee.
Oscar the cat predicts death in Rhode Island convalescent home, likely by smell. Oscar (therapy cat) - Wikipedia
Patrick Suskind’s novel Perfume is about a serial murderer with no perceptible body odor, who got off on the perfume of death. Perfume (novel) - Wikipedia
Maybe I shouldn’t have ended on that one.