Securing your wireless network...alternatively

Just got Broadband in the house and have a wireless router broadcasting the signal around the house. I haven't bothered putting a password on it, so I suppose my neighbours could be having free access. I was thinking about this and came across a story of a guy who is securing his wireless network in an alternative fashion. Essentially, he is messing with the layout of the pages that his neighbours are browsing...their fault for piggybacking!!