I knew all sorts of COs during my 36 years as an active Witness. Some were nice enough, some were absolute power hungry bullies.
I remember my father, an elder at the time, said "Oh, CO's are just like any other elder" to the then PO just before the CO visit, and got chewed out for his lack of respect for "godly authority". Hilariously, when the new CO came, the first thing he said was "I'm just like any other elder" in his introductory first talk to the congo...I just about died laughing in my seat and my dad smirked as the PO blushed bright red and glanced over at my dad.