I know two Shadrachs. Father and son. Wonderful family.
This year, I was a substitute teacher, and I had a fun time with names. The stranger the name, the worse the behavior from the child. I subbed in some classes more than a few times, so I learned the students names and faces and learned how to deal with some attitudes. Parents are clueless about how their wild hair name choices affect their children.
We altered the spelling of a normal name for our oldest. If we had to do over again, we wouldn’t.
I wonder what causal relationship there may be.
In particular, I wonder if "strange names" (or having to live with them) don't cause "bad behavior" so much as they can be an indicator. I wouldn't be surprised if parents who choose questionable names are more likely to rear children questionably as well. Some parents may be ignorant or heedless of the practical disadvantages of a more difficult name; others may be flippant about the consequences, others openly "defiant." Now imagine these characteristics in other parts of life.