I must raise my hand as a semi-retired (unwillingly due to location) ghost hunter. And I can say that our group never ever always found what we were looking for. There were lots of nights that we sat in the cold pitch black and caught nothing at all.
Orbs drive me absolutely CRAZY! There are TOO many things they could be, dust, moisture, crap on the lens.... Out of all the nights we went out (usually two of my sisters, my 9 year old neice, some friends and I) there was only 1 night where we caught something totally unexplainable. We were in a HUGE old cemetery in Newburyport, Mass. We were in the back of the cemetery by some trees at the bottom of a little hill on a dirt road, near a huge old crypt. There were 13+ of us that night. Out of
nowhere suddenly issues this blood chilling scream, it went on for a good 30 seconds or more. It was completely audible to EVERYONE present as half the group scattered back to the cars. My sisters, neice and I and one other person stood at the bottom of that hill after the screaming was over and listened but there was not another sound.
I have never heard anything like it before or since. We had been to that graveyard several times before, but not to that section. A return trip the next day lead us down a little dirt path into the woods where a series of old forgotten shipwreck victims graves lay.
Here is the audio clip:
http://www.hollowmoon.net/pics/scream.wav 5.37 megs
I
swear that this audio clip is real, it was not fabricated in any way. We had this clip on tape recorder and more than one camera equipped with night vision. Since moving to Maine we haven't done any investigations, though we have been invited by friends of my Father to spend the night in a huge old Captain's house turned B&B where they routinely hear someone fall down the back servants steps that lead to the kitchen, an old woman has been spotted, something sat on the bed of the husband while he was taking a nap, and something kicked the family dog so hard it cracked it's ribs and absolutely refused to go into the house after that incident, retreating to the adjoining carriage house. We might take them up on their offer this winter, I'll let you know if we catch anything