The Shielding and Aura of Fear subfields can also prevent unwanted intrusions.
From the full Shielding Protection item description on the Sapien website:
Shielding : Your body and mind naturally produce a psychic membrane around you all the time that prevents most psychic intrusions into your mind, at least the casual ones. This field strengthens this into a hardened field of psychic force that activates to stop negative energies and ideas from reaching your mind, while allowing positive feelings and energies in without trouble. Even major league psychics and less than natural entities will have trouble getting through this!
Aura of Fear: The name is a little bit over-dramatic perhaps, but it really will cause anyone looking for a victim to think twice about picking you. You will suddenly seem dangerous for some reason, regardless of your physical size or true danger, and the would be attacker or criminal will feel increasingly uncomfortable and wish to go away from you. This is a measured effect, so that if a person is likely to attack from fear, they will simply feel uncomfortable, but extremely so!
The Shielding Protection dog tag can protect against both the effects of the intrusive, uncomfortable questions, and quite possibly against these unwanted intrusions, as the ‘unsolicited “readings”’ and invasion of privacy you have described might be considered your being affected by ‘anyone looking for a victim’.