I actually really like my name...

It came from a friend of mine who used to write/draw cartoons back in junior high school (yea, long time ago). He had an animal designated for each person in our little group of friends. There was an owl, pigeon, "capybara", and a duck. The name "cappaberra" was what was written down all the time because my friend didn't know how to spell it correctly--capybara is the proper spelling. :P
BTW, I don't represent the qualities (or, lack thereof) of a capybara: the dumbest, biggest rodent alive.
So, ever since then cappaberra stuck as my nickname. No one ever calls me it, but sometimes some close friends call me "cap", so that's why I sign everything as "CaP" (also it's shorter to write... yea, i'm lazy :P).
Another cool thing is that whenever I sign up for ANYTHING on the internet I can also gaurantee that my nickname will be available.

It's quite nice, since it's a unique spelling.

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now, don't go out there signing up for everything using my name, dammit. 
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So, I guess that's the story. I use this nick everywhere (irc, IM'ing, here, etc...) ... even my website:
http://noah.cappaberra.com
yea, you guessed it, my real name is noah.
later,
cappaberra