When do you know that
* you try to make contact with another tech-eyes/tech-ears (can be two and one only, on and off, separately) person, these problems and other?
* you try to make contact with this (very) corrupt mind, serial killer or other? Psychiatrist class or other, i.e., serial killer club issues?
* you try to make contact, but come across as impolite because your "style" (or your smell of a**, incredibly enough) does not suit (the misjudgment of character as matter of clothes, behaviour, features of the body because of the state of society in being corrupt) the recipient and that therefore you are ripe for killing directly or to do great harm to you first?
NO! Because you DON'T! See for yourself how easy it is when everybody is supposed to accuse of "hundred character flaws", usually falsely, I presume! Very easy... Try to mean anything, try to be somebody... (Heh-heh-heh, staring death right into the face yourself!)
"Pleased to meet you! I hope you guess my name!"
Concerning character traits, more explicit or not (Mother takes over Norman's mind, Psycho by Alfred Hitchcock):
PS: In the meanwhile, your friend-to-be may have received a bit of "police-approved" personality conversion. Now where to JUMP, mr./mrs./ms. BUNNY?!
As matter of "Philosophy of Friendship":
1. point: Weapons, conventional, non-military and non-lethal to ALL!
Before this, the European friend is a duality at best, 10 dangers around the corner instantly. Well, well, write it off as self-pity to the strangeness in the World all you bother..., but it comes down to a good neighbour and the sense that people can reach, can enjoy life as much as yourself, the "Love to next of kin/human being" by Jesus and the New Testament, if not the point from 10 Commandments.