[danssig]

They thought of that. You can put it up to your head like you're on a phone call. You don't feel self-conscious talking on the phone in public do you?

[ajryan]

While on the bus, I don't call my personal assistant and ask her to change my gynecologist appointment, using carefully paced, clear language.

[danssig]

Can't you relabel things with Siri? I.e. at home say "Siri, when I say 'water polo' I mean gynecologist" (replace 'water polo' with a sport you would never actually play under any circumstances, otherwise you could end up with a big surprise at some point). Then you can have siri change your water polo appointment on the bus without issue. :)