You Lock Your Car.... You Lock Your House...
WHY DON'T YOU LOCK YOUR WIRELESS NETWORK???
I'm sitting here on the 35th floor of the Sheraton Seattle with nothing more than a laptop and a Lucent Gold Wireless Card (bout $70 thse days)... no antennas, nothing... and I can see over 30 wireless networks, 10 or 12 of them have NO ENCRYPTION whatsoever.
So, not only am I using someone's bandwidth, I could access all of their company's internal resources...
I want to get my car fitted with a 12dB omni and GPS, so I can go wardriving!