Desperately Seeking... a Nemesis!?

I remember this story from a while back (http://www.nerdist.com/2008/07/sf-man-looking-for-nemesis/). 

Chris Hardwick wrote about a guy who posted an ad on Craigslist asking for a Nemesis.  The post was funny, and a little silly.  But recently I've been missing the competitive nature of a big sales office.  We're a small firm, so you don't have that same spirit of competition with different teams or departments.  So... I have recently picked a Nemesis.  I'm not looking to completely destroy this person... but I definitely want to "beat" him/her.  Why not?  Everybody needs a reason to wake up in the morning :)

What about you?  Do you have a nemesis creatively?  Personally?  Professionally?