I think what young Lostdiver has discovered is that DIR divers are like wee children.
If you don't do what they want you to do (which is VERY logical in their point of view) they spit out their dummies and start stamping their feet. This is very funny when it happens because all reactions after the initial "agro" are very predictable.
The worst is when you tell a 3 or 4 year old child that there is another child better than him/her. That can become a murderous situation
The Hostility.... well all I can say about that is that it is from the roots of ignorance that it sprouts....