Brought the laptop, the wireless adapter, and both antennas to work. We work in a office park, but it doesn't have a lot of businesses in it.
So I think the most were 15 probe networks, and 5 actual networks. 2 of them don't have any encryption enabled. One of those does have it's bssid turned off.
I sat here probably an hour or more with everything set up, and no one paid attention. When I found I did bring the holder, and attached it to the back of the laptop, people started gathering around and asking questions.