Should people have the right to sue if they werent told before buying a house...

that its haunted? i have heard off and on the past several years people suing and trying to get out of their mortgages because the realtor didnt tell them the history of hauntings in a house or the history of a murder etc.. while i would of course want to know i think it could be an easy cop out for people to claim stuff and try to get out of their deal.. plus not every one is affected by a haunting either.. some people are sensitive to spirits and can down right be terrorized and other people arent sensitive at all and never notice anything.. so do you think the realtor or previous owners should have to say that there is ghost activity or a murder that had taken place in a house your looking at? is it really a good excuse to get out of the loan?