I haven't noticed if I'm a last-word-argument person. In general, I try to avoid arguments to start with. When arguments do drag on, it's usually because I require some sort of resolution to the issue in order to move on.

*shrugs*

In anycase, this thread made me think of Dr. Seuss' Fox in Socks, where one character finally gets the last word:

"When a Fox is in the bottle where the Tweetle Beetles battle with their paddles in a puddle on a noodle-eating poodle, THIS is what they call......a Tweetle Beetle Noodle Poodle Bottled Paddled Muddled Duddled Fuddled Wuddled Fox In Socks, Sir!"