Back when I could still distinguish odors: Flyback transformer, Electrolytic capacitor, carbon resistor, solder-flux, … yeah, troubleshooting was an all-senses chore.
Body chemistry, shampoo history (brand/frequency), water analysis,…small test swatch under the back of the head often tried a week before the real process when done at a (1950s) local small-town Beauty Shop.
Two marvelous contributions to a wonderful life; good food and the cooks that can make the good food. From my perspective, cooks being girls enhance that contribution as well. Isis, please let me know when that one is cool enough to slice.
Regretfully, yes.