As we all know, the entire grid is under savage attack from free account griefers armed with freebie pushguns and unsavoury furry body parts. Sensible folk of course have banlines up on their property at all times, and ideally sit inside concrete pillboxes as well.
However, we all must go out into the rest of the world sometimes, and what is one to do on such an occasion? The device I believe you require is a Personal Ban Zone. Arm yourself in the knowledge that no damnable lower-class freeloading ruffian can get near!
(Please note that this product may not actually do anything at all.)