[lucb1e]

> using common network names

Exactly, even if it's not broadcasting network names, almost every student in the Netherlands will have the train's WiFi hotspot in their list of networks.

One thing I still want to check out is whether the laptop will connect to an open network with the same name as a known network that was password protected.

[bluerobotcat]

On OS X it will not. OS X will also alert you when you try to connect manually.