Sympathy about the rage, I did this often enough through most of my life, it was exhausting and occasionally very embarrassing!

I think I'd describe it more along the lines that bipolar alters the anger issue, making its startup so much sharper, and when it ends, so much more exhausting. At least that's how I experienced it. With testosterone deleted though, that whole feedback cycle seems to be severely muted. (progesterone may do a similar trick too though...)

As to business incompetence, it can get pretty bad when you expect a sales person to know and understand what they are selling; but most don't. They know how to operate the register, and maybe the cc machine. If lucky, they'll know where most things are; but knowing whether something is a specific spec, and even WHY it needs to be that way? Not likely.

On NIMH.. they have a lower voltage and higher endurance at that voltage than an alkaline. If a circuit is optimized for NIMH voltage, it either can't work with an alkaline, or it'll drain it in a very short time because it pulls too many (mili)amps through the device at the higher voltage.