Hmmm...

Some people can get rather insistent on their own views and thoughts. And when they get that way, sometimes they raise their voices (whether consciously or subconsciously), sometimes they just adopt a more agressive physical stance.

Anyway, I think there’s a variety of reasons why some people can get rather insistent but there are some major ones which stand out.

• Plain old stubbornness
• Not wanting to “lose” in a discussion or a small argument
• Confidence (or overconfidence?) in one’s ability and thought
• Plain old muddleheaded-ness (is there such a word?)

Just my two cents' worth.
Food for thought. Do you get this way?