How do ghosts effect peoples lives?

Most ghosts go by unnoticed to people they "inhabit" with, but poltergeists and negative energies (eg-resulting from incorrect use of a Ouija board), can cause unwanted and distressing results, sometimes driving people from their own homes. These situations can be solved, if you think you have a poltergiest/negative spirit infestation, call up a well established and trusted medium/clairvoyant and ask them for their help to rid your home of the bad energy. The spirits are powerless to such people.