As with anything else, the good comes with the bad, even when ghost hunting.
I personally have only been attacked by something negative a handful of times since I have been doing this, but that doesn't mean that a malicious spirit wasn't there, it just didn't show itself to me. Then again, I wasn't in the nicest of places to be--Ohio State Reformatory Prison, local historic jails, asylums, etc. I just recently had a healing/cleansing and she removed eight attachments (4 women/4 men) and dark energy. When it was removed it was light night and day---my body felt lighter and my demeanor and temperment have changed. When I had the attachment, I was short tempered and quick to get angry.
You must always keep in the back of your mind that the nice little girl that you're communicating with or that is moving an object for you or turning your flashlight on and off may in reality be a evil spirit or demon luring you in. I don't meant to put it out there so bluntly, but when dealing with the unknown, you can't sugar coat the possibility that you may run into something that isn't so nice. I'm not saying they're all mean, but as with spirits that were once human, they can be shady. They're the same once they die as they were when they were here--if they ever were here.
When dealing with the paranormal, you MUST and I cannot stress this enough---protect yourself. You can say a prayer and ask for protection, you can protect yourself with golden light, etc.. How you protect yourself is unique to each person due to your religious beliefs and such. You must also tell the spirit that it cannot leave with you, that it has to stay where it is and NEVER tell it to come with you. You must also ground yourself and cleanse yourself with sage when you are finished. Several of my team members do this so that nothing follows them or attaches to them after investigations. Speaking of cleansing, you should cleanse your home so that nothing can come in that is not of love and light, but that's another subject
Jennifer, Director of BSR Paranormal