Training 3
One of the hardest Tasks as a paranormal investigator will be to
become Shockproof. Lets say you were at a site for many hours,
you're bored and suddenly you hear a noise.  Being the curious
type(all in this field are) you go take a look and boom you run across
the above scene. Do you 1. Close the door ,excuse yourself and leave
or  2. Start popping pictures like a madman, Screaming for help.  3.
Invoke Jesus or Whoever to come deliver
the evil demons.  or the elusive number 4.  Try to communicate with
them, back away if asked, and develop trust between you and the
spirit. Then you can learn. This is a rather overblown example, but it
serves the purpose. You will run into all kinds of situations and these
same principles apply.