Precisely

In a shop I frequented, a mechanic wore a lab coat and stethoscope while working on bikes.  

That was just one of his eccentricities. Turns out, he’s not the only mechanic I knew who viewed his work in medical terms: Another, who also owned a shop where I worked, told us that bearing surfaces should be “surgically” clean before lubing then.

Ironically, yet another mechanic of my acquaintance went to medical school and never talked about his work in that way. In fact, he didn’t talk about his work at all.

In case you’re wondering how the first mechanic in this story got a lab coat and stethoscope: His wife was a nurse in a nearby hospital.