Elevator key — how do we decide who gets the ONE key? Or do we make copies? (If so, where? It looks like a difficult key to copy)
Is the Windows Malware Handout a fundamentally bad idea? (print out this in advance, and show it to them). "Give a person a fish, and you've fed them for a day." Give a Windows owner an easy spyware fix, and they'll be back in six months with the same problem. "Teach them to fish, and you've fed them for a lifetime." Encourage them to use Linux instead.
On the other hand, we need all the free advertising and word-of-mouth we can get, so maybe it would be a good idea to have an excuse to contact geeks in the immediate vicinity of FreeGeek, since that may turn out the same way that the Clear reseller thing did — we ended up benefiting from them way more than they benefited from us.