Not going to [i]get[/i] any friends acting like that.

Not being able to properly defend against a mental attack makes a certain amount of sense. Leaving out theoretical knowledge like what we have at least. Not even being able to tell if somebody else is reading your mind is something else.

Being able to read a person's thoughts without entering their mind would require that everybody be partial telepaths that send out their thoughts but are unable to pick up those of others.

Either they have to send it out or you have to go get it.