I think everyone needs some sort of defense, i honestly haven't read anything recent except urban primative which actually had several reasons and methods for psychic defense...i don't believe there are evil entities, but there are essences who would enjoy harming if they are tapped into, just unknowingly destructive or even the "psychic vampire" type of person that willingly or ignorantly preys on others energy...The man who stood up and stated that he'd never seen it probably has not seen that method, but i'm sure he has his own defenses...like all other aspects of the mind, they can be in place and not realized...or as the presenter said he'd never "stirred" anything up...if more people would protect themselves willingly than there'd be less of a chance for them to "stir" something...Those who have tend to be prepared...

i personally call on guardians....i lack the focus to defend myself, but have the knack to summon those who will *shrugs* it's not for everyone, but than not everyone is a fero or necro

*giggles* in that concept your two names rhyme funny isn't it?