Phone password? Hah!!.... I don't even let my gf connect to my home* wifi.
*Well, I do let her connect to the ISP-issued router. It's my separate VPN router that she'll never get access to, ever.
Now that I think about it, current phones are way less girlfriend-proof than older ones. Previously, she'd have to guess my pin or password. Now she can just pick up my phone and hold it to my face in order to unlock it. :-/