Like most people have answered, I can't seem to control my volume consistently.
It's either too loud and abrupt or too soft and inaudible. All depends on my mood...I guess.
This is something I'm consciously working on these days.
I've had a recording done of me answering questions on a passionate subject and...whoa!...It was bad, I came across as very rude, abrupt, loud, hostile and mono toned. Strange thing is...that's not the way I intended to sound.
Must work on that. 
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Nothing much shocks me...so please stop trying...yawn...