I got a C grade from the radiochemistry labs once. It troubled me a great deal: I wanted no C on my transcript. The overbearing fellow in charge of the labs was throwing tantrums because of some weakly-labeled sulfur spilled on my bench. (A soft emitter less active than plain KCl, I argued – but the bossman would have none of it)
And I fought hard and requested extra weeks in that basement lab: I would redo everything, on those noisy detectors.
Thus I earned the second C from the radiochemistry dudde – proving his point that I was an exemplary failure.
I prayed for this man’s suffering. A swimming accident – fast comes a boat with two cruel propellers…
Now I see only a disappointed man, trying to discipline kids. The years in a basement lab with obsolete instruments