One of my two best friends, Jim Sottile, Jr., is an artist and an Info Tech nerd. His most recent obsession is mapping wifi router names throughout the city of San Francisco, and he's looking to spread this EVERYWHERE. For no reason. Just art's sake. He doesn't want to break into wifi networks, he just wants to map them, and observe all the funny network names.
Here's more from Jim on his VOX page, describing this art piece, and here's more on his .mac page. He is obsessed.
Here's a link to his warchalking map of San Francisco, wherein Jim observes that "One of the more popular unique word used in naming home wireless routers in San Francisco so far seems to be the word "monkey"."