recently got my first corn and i was worried about the same thing, and to add insult, the first handling freaked me coz she bit me! Although this is relatively rare, even if it does happen its nothing to be 'freaked' about coz its more like a soft kiss lol.
just go in and pick ur corn up, before you know it its just sniffing about thinkin ur new, then with time and frequent handling it should get to recognise ur smell. if it does become scared and starts striking at ur hand dont stress, let it realise that you are not going to eat!
to avoid letting ur corn get used to the idea of 'cage opening' = 'food' try to feed it outside the cage (in a small tupperware type tub) as often as possible.
hope this helps