All Psy, from A to M to F, know how to shield. It's the first thing a parent teaches their child the moment they enter the world. It's especially vital as we don't just have to shield from the world at large, we also have to protect ourselves on the PsyNet.

[Without skipping a beat, he switches to telepathy.]

Will you grant me permission to look in your mind? I will not violate your privacy.