In this case, The Man is Best Buy.
I don't see any way to not make this a long, boring story, other than to say this:
Best Buy screwed up on installing some speakers, and I actually got them to fix their mistake free - and even discount it. (This is very unlike me. I don't even bargain for price at garage sales.) I did it nicely, but I DID it.
Then - buoyed by my success with the speakers and with encouragement from my friend Mary Jo - when I had to buy a new receiver (it was kind because of a mess-up of Best Buy's, but not entirely), I actually talked them down from $500 to $199.
I swear I think this life list has made me bolder ... not to mention richer.